Drain system

Abstract

The invention relates to a drain system comprising: a drain device having a drain trap (3); a drain channel (1); and a sealing collar (4), wherein: the drain trap (3) has an outlet orifice (31) for connection to a wastewater pipe (600) and an inlet orifice for connection to the drain channel (1); the drain channel (1) has a channel connecting piece (12) which connects a drain orifice (11) of the drain channel (1), which is provided on an upper side of the drain channel (1) delimiting the drain channel (1) along a vertical direction (Z), to a discharge orifice (13) of the drain channel (1), which is provided on the lower side of the drain channel; the drain system when properly used can be positioned in an operating state in which the drain orifice (11) is located above an upper side of a load-bearing layer (200) and the inlet orifice is located below the drain orifice (11) and in which the sealing collar (4) is located on the upper side of the load-bearing layer (200) and extends beyond a horizontal extent of the drain channel (1) along the upper side of the load-bearing layer (200); in the operating state, the drain orifice (11) and an upper side of the sealing collar (4) are fluidically connected to the inlet orifice.

Description

[0001] Ma / pj June 4, 2025 Applicant: TECE GmbH 48282 Emsdetten Narrow Shower Channel The invention relates to a drainage system according to the preamble of claim 1, a drainage device of such a drainage system, a method for installing such a drainage system in a floor, and a method for cleaning such a drainage system. Drainage systems of this type comprise a drainage device including a drain pot, a drainage channel, and a sealing sleeve. Such a drainage channel is used to drain water from a surface of a floor into a drainage channel of this type integrated into the floor or into its drain pot. Such a drainage channel thus serves to drain a surface of a floor and can therefore be used, for example, to create barrier-free showers. For drainage, the drainage device or the drain pot is usually integrated into the floor so that it is located within theThe drainage channel extends vertically along the floor and is installed in the floor such that its upper surface abuts the surface of a floor covering that forms the upper surface of the floor outside the drainage channel. Water that flows from the floor surface adjacent to the upper surface of the drainage channel to the drainage channel is directed by the channel to its outlet and from there into the drain basin. For this purpose, the drainage channel has a drain opening at its upper surface, through which water can flow from its upper surface to its outlet. The water can then be discharged from a drain opening formed at the underside of the outlet into the drainage system or into the drain basin. The drain opening can be elongated, particularly in a longitudinal direction. The essential feature is that the drainage channel carries away water that reaches the surface of the floor covering.For example, the floor covering can have a slope towards the drainage channel, which directs water on the surface of the floor covering to the drainage channel and thus also to its outlet. In one embodiment, the drainage channel has an upper surface adjacent to the floor covering and is positioned with its upper surface between two sections of the floor covering that are spaced apart from each other in a horizontal transverse direction by at least 2 mm, in particular at least 3 mm, in particular at least 5 mm, and in particular at least 8 mm. In another embodiment, the drainage channel has an upper surface adjacent to the floor covering and is positioned with its upper surface between two sections of the floor covering that are spaced apart from each other in a horizontal longitudinal direction by at least 100 mm, in particular at least 150 mm, and in particular at least 200 mm. In another embodiment, the upper surface of theThe drainage channel is formed by a flat extension of the drainage channel, which has a surface area of ​​at least 50 mm², in particular at least 100 mm², and in particular at least 150 mm². In one embodiment, the drainage channel is frame-like on its upper surface, forming a frame that encloses the drainage opening and against which the floor covering can be arranged. The drainage pot has an inlet opening for connection to the drainage channel and an outlet opening for connection to a wastewater pipe. Water that enters the drainage pot from the channel outlet through the inlet opening is discharged through the outlet opening into a wastewater pipe connected to it. In every intended operating state of a drainage system of this type, in which the drainage system is integrated into a floor, the drainage opening of the drainage channel is located above theThe drainage system is arranged on the upper surface of a load-bearing surface, with the inlet opening of the drain body positioned below the drain opening. A sealing collar of the drainage system is located on the upper surface of the load-bearing surface and extends beyond the horizontal extent of the drainage channel along the upper surface of the load-bearing surface. The drain opening and the upper surface of the sealing collar are connected to the inlet opening in a fluid-conducting manner. The sealing collar thus ensures a water-conducting connection of the drainage system to the adjacent load-bearing surface in every intended operating condition, allowing water that reaches the upper surface of the load-bearing surface to be guided through the sealing collar to the inlet opening of the drain body. It has been found that drainage systems of this type allow for particularly simple, highly practical, and aesthetically pleasing designs of floors requiring drainage, such as shower floors.The usual procedure is as follows: The floor comprises a subfloor, typically defined by the building structure of the building in which the room is located, the floor of which is to be drained by means of the drainage system. The drain body of the drainage system, and in particular the entire drainage system, is placed on the subfloor. A load-bearing layer, such as screed, is then applied to the subfloor. This load-bearing layer is applied horizontally outside the inlet opening of the subfloor in such a way that it at least partially covers the drain body and, in particular, is positioned below the drain body over at least a horizontal section of its extent. Thus, the drain body is embedded in the load-bearing layer. The load-bearing layer and the drain body extend over the same vertical section. A sealing collar is then applied to the top of the load-bearing layer, through which theWater that has penetrated the top of the subfloor can be directed to the inlet opening of the drain body. For this purpose, the sealing collar is either factory-sealed to the drainage system or sealed during the installation of the floor. If the drainage channel is installed away from all walls of the room, the sealing collar is attached only to the subfloor, running horizontally around the drainage channel. If the drainage channel is installed against a wall, the sealing collar is also attached horizontally around the drainage channel, but partially to the subfloor and partially to the wall. A floor covering, such as tiles, is then applied to the subfloor, serving, among other things, to visually finish the floor. When the drainage channel is installed within the floor, it is typically integrated into the floor covering in such a way that theThe floor covering borders the drainage channel, and the drainage channel, with its outlet, opens directly or indirectly into the inlet opening of the drain basin via a connecting device, so that it can discharge water that enters its outlet opening from its upper surface into the drain basin via its discharge opening. Typically, the floor covering incorporates a slope towards the drainage channel. Thus, water located on the floor covering is directed by the slope to the drainage channel, and from the drainage channel, the water is directed via its outlet into the floor drain and from there into the drain pipe. For the purposes of this application, "slope" means a slope with respect to the vertical direction, which, in the intended installation state of a drainage channel or drainage system, or in any intended operating state of the drainage system, corresponds to the direction of the gravitational force on Earth, so that the water, due to theGravity automatically guides the flow along the slope. Due to the complex requirements placed on drainage systems of this type, such systems are typically complicated in design or suitable for only a limited number of applications. It must be considered that the drainage system should be suitable for potentially varying vertical thicknesses of a subfloor and / or floor covering, and / or for different distances of the drainage channel from a room wall. Furthermore, the drainage system should accommodate tolerances between the recess provided in the floor covering for the drainage channel and the inlet opening of the drain body. It should also be as aesthetically pleasing as possible when integrated into a floor covering and achieve the highest possible drainage capacity, i.e., the removal of water with the highest possible ratio of water volume per unit time.The drainage system should ensure proper drainage and, furthermore, prevent clogging of the drain body if possible and / or allow for easy cleaning of the drain body. Generally, it is particularly desirable that the drainage element of the drainage system can be easily integrated into a supporting surface, that the supporting surface can be implemented horizontally adjacent to the drainage element in the simplest possible way, so that its surface transitions seamlessly into the surface of the drainage element without significant height difference, and that a seal between the drainage element and the supporting surface adjacent to the drainage element, or the surface of the supporting surface adjacent to the drainage element, can be achieved as simply and reliably as possible by means of a sealing collar, which can be professionally sealed to the surface of the supporting surface using a sealing coating.On the other hand, it can be sealed to the drainage device or is already connected. Furthermore, such a drainage system should also provide the most reliable possible odor trap and be suitable for the lowest possible installation heights, i.e., the thinnest possible load-bearing layer. Drainage systems whose drain body has an integrated odor trap have proven particularly desirable, with the odor trap preferably being permanently integrated into the drain body and thus not removable. For example, such an odor trap can be formed by an arc-shaped or S-shaped flow channel in the drain body, creating a water seal within the drain body where, as is typical with siphons, water remains after the water has passed through. Typical drainage systems meet these complex requirements.The requirements are only inadequately met, particularly a combination of the aforementioned requirements. The present invention is based on the objective of providing a drainage system or a drainage device of such a drainage system, or a method for installing such a drainage system in a floor, or a method for cleaning such a drainage system, by which at least one disadvantage of generic drainage systems, drainage devices, and / or methods is at least partially eliminated. As a solution, the invention proposes a drainage system comprising a drainage device, a drainage channel, and a sealing sleeve. The drainage device has at least one drain bowl. The drain bowl has an outlet opening for connection to a wastewater pipe and an inlet opening for connection to the drainage channel. The drainage channel has a channel outlet that connects to a drain opening of the drainage channel located on the upper side of the drainage channel.The drainage channel is provided with a discharge opening on its underside. The terms "upwards" and "downwards" or "above" and "below" denote opposite directions along a vertical direction or corresponding relative positions along the vertical direction. Since the discharge opening of the drainage channel is located on the upper surface of the channel, which defines its vertical boundary, water present on the upper surface of the channel can be discharged downwards through the discharge opening. Preferably, the drainage channel is manufactured in one piece from a sheet of metal, with the channel outlet being produced by deep drawing the sheet. The sheet can be made of, for example, plastic, metal, or a metal alloy. The drainage system can be brought into various intended operating states. An operating state refers to a specific arrangement of the components of the drainage system.Each intended operating state refers to an arrangement of the components of the drainage system relative to each other, in which the drainage system can be used to drain water from a floor. The invention generally proposes a floor comprising a drainage system according to the invention in its operating state. Preferably, the drainage system can be arranged in several different intended operating states, wherein the intended operating states differ from one another in that at least some of the components of the drainage system are arranged differently relative to each other, wherein preferably the drainage system can be arranged in each intended operating state such that the drain opening of the drainage channel is located above a flat upper surface of a supporting layer of a floor and the inlet opening of the drain pot is located below the drain opening, wherein the sealing sleeve is on the upper surface of the supporting layer.The drainage system is arranged and extends beyond the horizontal extent of the drainage channel along the top surface of the supporting surface, with the drainage opening of the drainage channel and the top surface of the sealing collar being fluid-conducting and connected to the inlet opening of the drain pot. When a specific floor is constructed, the drainage system is in a specific intended operating state. The top surface of the supporting surface, which is referenced in defining the operating state, is preferably flat and perpendicular to the vertical direction, and thus horizontal. The drainage system is therefore generally advantageously suitable for being brought into various intended operating states, in which the components of the drainage system are arranged or designed as described above, with reference to a flat top surface of a supporting surface to define the suitability of the drainage system. The sealing collar is generally advantageously film-like.The sealing sleeve is designed so that it extends horizontally over a flat area in every intended operating state, preferably having a thickness of less than 2 mm, and in particular less than 1 mm. The sealing sleeve can, for example, have a fiber layer on at least one side, such as a flocking or a fleece, in its intended operating state, so that it can be reliably sealed to a sealing coating provided on the top of the supporting surface. In one embodiment, the drainage system has a temporary construction cover that can be detachably connected to the drainage device, wherein, in a pre-assembly state of the drainage system, the temporary construction cover is connected together with the drainage device, in particular with a connecting device of the drainage device provided in advantageous embodiments, and in particular together with theThe receiving section of such a connecting device encloses a storage volume. By enclosing a storage volume together with the drainage device, the construction-time protection cover effectively prevents the ingress of contaminants into the inlet opening of the drain pot. Preferably, the inlet opening opens into the storage volume or is fluid-conducting and connected to the storage volume, in particular by means of the connecting section of a connecting device as provided in advantageous embodiments. Preferably, the storage volume is clearly defined by the arrangement formed by the drainage device and the construction-time protection cover. Preferably, the storage volume is clearly defined by the connecting device and the construction-time protection cover, in particular by the receiving section of the connecting device and the construction-time protection cover. The connecting device with itsThe advantageous properties, as provided in the embodiments, are explained here with reference to advantageous embodiments. Generally preferably, the connecting device has a receiving section and a connecting section, wherein the receiving section has a receiving surface in which a receiving opening is provided, the upper surface of which defines the storage volume and thus forms a lower end of the storage volume, and wherein the receiving opening is connected to the inlet opening of the drain pot by the connecting section. Preferably, the storage volume is arranged entirely above the receiving opening. Preferably, the sealing sleeve is arranged in the storage volume in the pre-assembled state or can be arranged in the storage volume formed in the pre-assembled state of the temporary construction cover and the drain device. The provision of a temporary construction cover is known in the prior art.This is generally known. Such a construction-phase protective cover typically conceals the inlet opening of the drain pot during the construction phase, when the supporting layer is applied to a subfloor in the intended use of a drainage system according to the invention, to prevent serious soiling of the drain pot and, if necessary, blockages of the drain pot or the connected wastewater pipe. In embodiments that include a connecting device with a receiving section and a receiving opening, the construction-phase protective cover conceals the receiving opening during the construction phase and thus in the pre-assembly state. In the pre-assembly state, in embodiments that include a connecting device and can be configured as described here, the connecting device with its connecting section can be arranged to seal the inlet opening of the drain pot. ByBy arranging the sealing sleeve within the storage volume, it is possible to securely store the sealing sleeve during the application of the base layer. After the base layer has been applied, the temporary construction cover can be detached and removed from the drainage system to release the storage volume. The sealing sleeve can then be applied to the top of the base layer, thereby creating a watertight connection between the top of the base layer (or the top of the sealing sleeve) and the inlet opening. Preferably, the sealing sleeve is already sealed to the inlet opening during pre-assembly, thus providing a watertight connection between the sealing sleeve and the inlet opening. Preferably, during pre-assembly, the sealing sleeve is horizontally sealed around the receiving opening with the preferably provided [missing information].The sealing sleeve is connected to the connecting device, in particular sealingly connected to the receiving section of the connecting device, especially to the frame area. Preferably, when a intended operating state is achieved, the sealing sleeve remains sealed to the inlet opening, the connecting device, the receiving section, or the frame area from the pre-assembly state. In one embodiment, the sealing sleeve is only sealed to the inlet opening, the connecting device, the receiving section, or the frame area after the pre-assembly state to achieve an intended operating state, as described above, for example, by crimping and / or bonding the sealing sleeve to the preferably provided connecting device. In the pre-assembly state, the temporary construction cover is detachably connected to the drainage device. Thus, the drainage device and the temporary construction cover ensure thatIn the pre-assembly state, a pre-assembly arrangement is formed. In one embodiment, the pre-assembly arrangement—that is, in the pre-assembly state, the temporary construction cover or the drainage device, or the temporary construction cover and drainage device together—forms a screed edge whose upper end defines a vertical position. Thus, in the pre-assembly state, a screed edge is provided that defines the vertical position of the top surface of the load-bearing layer adjacent to the pre-assembly arrangement. This layer is applied to a subfloor next to the pre-assembly arrangement, since the load-bearing layer is applied vertically up to the screed edge next to the drainage device or next to the pre-assembly arrangement. In the operational state, the top surface then extends from this defined vertical position towards the drainage device, or rests against the drainage device at the level of this vertical position. The screed edgeIt is fundamentally suitable for use as a screed edge when applying screed as a load-bearing layer; however, it can also serve as a corresponding screed edge or vertical upper limit for adjusting the thickness of a different load-bearing layer. Preferably, the screed screed edge forms a horizontal end of the arrangement, consisting of a construction protection cover and drainage device, extending at least 180° around the vertical position. Preferably, the screed screed edge forms a horizontal end of the aforementioned arrangement in at least one horizontal direction at the vertical position, and in particular, also at least one, and especially the two opposite, horizontal ends in a second horizontal direction perpendicular to it. Preferably, the screed screed edge is formed as a closed, continuous edge over an angle of at least 180°, with reference being made to an angle around a vertical axis.Preferably, the construction protection cover projects vertically beyond the screed edge by less than 5 mm over at least 50%, and in particular at least 70%, of its total horizontal extent. Preferably, the construction protection cover projects vertically beyond the screed edge by less than 1 mm over at least 50%, and in particular at least 70%, of its total horizontal extent. Preferably, the construction protection cover extends, with respect to the vertical direction, over at least 50%, and in particular at least 70%, of its total horizontal extent to at most the screed edge. Preferably, the construction protection cover projects vertically beyond the screed edge by less than 5 mm, and in particular less than 1 mm, over its entire horizontal extent, or extends over its entire horizontal extent to at most the screed edge. By having the construction protection cover project only slightly beyond the screed edge.Because the construction protection cover protrudes beyond the existing screed edge, or only extends a small portion of its length, or even only reaches as far as the screed edge, it interferes very little with the application of the substrate and the adjustment of its thickness, i.e., its vertical extent, using the screed edge. While in the prior art, a construction protection cover typically projects significantly beyond any screed edge around a drainage system, making the components of the drainage system easy to implement but complicating the application of the substrate, the present invention, with the aforementioned advantageous embodiment, takes a different approach. The inventors have recognized that, contrary to the prevailing assumption in the prior art, it is indeed possible to design the drainage system in such a way that a construction protection cover as described can be implemented, for example, by using a [various] advantageous [components].In one embodiment, the receiving section and / or other step is provided at a vertical upper end of the drainage device, and / or the sealing sleeve is designed particularly advantageously, especially in a wrinkle-free manner, and in particular, as described for advantageous embodiments, has a section that is three-dimensionally formed in the operating state, in particular a three-dimensionally pre-formed section, and / or a storage volume for the sealing sleeve is created. In one embodiment, the construction-time protective cover and the drainage device together enclose the storage volume described above, wherein the drainage device forms at least 20%, in particular at least 30%, in particular at least 50%, in particular at least 70% of the vertical extension length of the storage volume, within which the sealing sleeve is arranged in the pre-assembly state. In another embodiment, theThe construction-phase protective cover and the drainage device together form the storage volume described above, wherein the construction-phase protective cover comprises at least 70%, in particular at least 80%, in particular at least 90%, and in particular over 95% of the vertical extension length of the storage volume, within which the sealing sleeve is arranged in the pre-assembled state. It should be taken into account that, in the pre-assembled state, the sealing sleeve is preferably arranged within the storage volume and extends over a certain vertical extension length of the storage volume, wherein, as explained, a correspondingly substantial portion of this vertical extension length of the storage volume is preferably formed by the drainage device. In one embodiment, the sealing sleeve is located, in the pre-assembled state, at least predominantly, in particular with at least 70%, in particular with at least 90%, and in particular completely, below the storage volume.The sealing collar is arranged at the screed edge. In one embodiment, starting from the pre-assembly state, after loosening and removing the temporary construction cover, the sealing collar can be placed on the upper surface of a load-bearing layer horizontally adjacent to the drainage device, at the height of the vertical position, while it is arranged below the vertical position on the drainage device. Preferably, to achieve the operating state, the sealing collar can be placed on the upper surface of a load-bearing layer horizontally adjacent to the drainage device, starting from the pre-assembly state. The upper surface of the load-bearing layer thus extends horizontally outside the drainage device. The sealing collar is preferably placed horizontally outside the drainage device on the upper surface of the load-bearing layer. The upper surface of the load-bearing layer is located at the vertical position defined by the screed edge. The vertical position is at the same vertical height as theThe sealing collar is arranged at the absolute upper end of the drainage device or vertically above the absolute vertical end of the drainage device. By allowing the sealing collar to be placed on the top surface of the load-bearing layer, which runs at the level of the vertical position, but is simultaneously located below the vertical position on the drainage device, and in particular by sealing it, it can be advantageously ensured that screed or other load-bearing layer can be easily leveled at the screed leveling edge, and furthermore, that a sealing connection of the sealing collar to the drainage device and a sealing application of the sealing collar on the top surface of the load-bearing layer are easily facilitated. The sealing collar is particularly preferably designed such that it can be laid on the top surface of the load-bearing layer without creases, starting from the pre-assembly state. It is preferably connected viaA horizontal area can be laid out on the top surface of the support surface, within which the top surface is in the vertical position and which extends horizontally outside the drainage device. Preferably, this area has a planar extent of at least 50%, and more preferably at least 70%, of the total planar extent of the sealing sleeve. Preferably, this area of ​​the top surface is flat. Preferably, this area of ​​the top surface of the support surface extends along at least two sides or ends of the drainage device that are opposite each other in a first horizontal direction, and along at least one side or end of the drainage device that connects these opposite sides and that limits the drainage device in a direction perpendicular to the first horizontal direction. For example, the first horizontal direction of the embodiments described herein can beThe longitudinal direction and the second horizontal direction correspond to the transverse direction described in the present embodiments, wherein preferably a wall is arranged on the other side connecting the two sides opposite each other in the first horizontal direction, and the sealing sleeve, in particular with its flat section described in the present embodiments, is applied to the wall. Preferably, the sealing sleeve, with its advantageously provided flat, foldable section described in the present embodiments, can be placed on the top surface of the supporting surface. The sealing sleeve can be designed to ensure a wrinkle-free appearance when placed on the top surface of the supporting surface; for example, the sealing sleeve can have a particularly low thickness, for example, less than 1 mm, in particular less than 0.8 mm, in particular less than 0.7 mm, and / or be made of an elastic material.The sealing sleeve may be manufactured and / or have a three-dimensionally shaped section as described in advantageous embodiments. Generally, the sealing sleeve is preferably designed in the form of a film. For example, the sealing sleeve can be multi-layered, with one layer of the sealing sleeve being made of a plastic, for example, PE, TPE, or PU, and forming a core layer of the sealing sleeve, which is coated on its upper and / or lower surface with a fibrous material, for example, nonwoven fabric or flocking. Surprisingly, the use of PU for the core layer has proven particularly advantageous for manufacturing the planar sealing sleeve, since PU has particularly advantageous elastic properties and therefore allows for a wrinkle-free formation of the sealing sleeve when placed on the upper surface of the substrate. In one embodiment, the sealing sleeve is inIn the operating state, and especially in the pre-assembly state, the sealing sleeve is connected to the drainage device exclusively below the vertical position, and particularly exclusively in an area spaced vertically from the vertical position. Preferably, this area is spaced at least 1 mm, particularly at least 2 mm, particularly at least 3 mm, and particularly at least 5 mm from the vertical position. Preferably, this area is formed by the receiving section of the drainage device's connection element. Preferably, the sealing sleeve is already sealed to this area in the pre-assembly state. By sealing the sealing sleeve to the drainage device exclusively below the vertical position, the seal can be particularly advantageously ensured outside the area of ​​a supporting surface to be installed in the operating state of the drainage system, while simultaneously ensuring a wrinkle-free formation of the sealing sleeve during installation.on the upper side of the supporting surface. In one embodiment, the sealing collar is, in the pre-assembled state, exclusively sealed to the drainage device in an area horizontally spaced from the screed edge. Preferably, along the entire horizontal course of the screed edge in its vertical position, the area within which the sealing collar is exclusively sealed to the sealing device is spaced at least 1 mm, in particular at least 2 mm, in particular at least 3 mm, in particular at least 5 mm, where the minimum horizontal distance between the sealing collar and the respective position of the screed edge is the determining factor. By sealing the collar only in such an area relative to the sealing device, which is horizontally and in particularThe vertical spacing ensures particularly reliable protection of the sealing sleeve, guaranteeing that, starting from the pre-assembly state, it can be laid wrinkle-free onto the upper surface of the support surface adjacent to the drainage device for operational use. This is because the angled shape of the sealing sleeve, made possible by the spacing, effectively prevents wrinkling, especially in combination with the advantageous design of the sealing sleeve described above, particularly with a thickness of less than 1 mm and / or the use of an elastic material. In the pre-assembly state, the pre-assembly arrangement formed by the temporary cover and drainage device encloses the storage volume in which the sealing sleeve is located. By enclosing the storage volume, the pre-assembly arrangement, or temporary cover, together with the drainage device, forms theA limitation of the storage volume is formed. Preferably, the sealing collar is sealed to the drainage device exclusively within a connection area, both in the pre-assembled state and in the operating state. The limitation of the storage volume formed by the pre-assembled arrangement extends from the connection area both horizontally outwards, i.e., horizontally away from the inlet or receiving opening, and vertically upwards. In particular, the limitation has an oblique course to the vertical direction, extending from the connection area both horizontally outwards and vertically upwards towards the screed edge. The connection area in which the drainage device is sealed to the sealing collar can correspond to the described area within which the sealing collar is sealed to the drainage device exclusively.Because the sealing sleeve is sealed to the drainage device only within the aforementioned area or connection area, the sealing sleeve can have a course outside this area or connection area that is independent of the course of the drainage device facing it. This is because the seal between the sealing sleeve and the drainage device is formed within the aforementioned area or connection area, so that the sealing sleeve does not need to follow the course of the drainage device facing it outside this area or connection area. The area or connection area is generally preferably designed as a ring-shaped area that is continuously closed around a vertical axis; preferably, the area or connection area extends horizontally around the inlet opening and / or receiving opening in a continuously closed manner. The sealing sleeve is, asAs explained herein, the sealing sleeve is preferably already sealed to the inlet opening or the connection device in the pre-assembled state. In one embodiment, the sealing sleeve is directly sealed to the drainage device, and thus to the inlet opening, the connection device, or the receiving opening; in another embodiment, it is indirectly sealed. A direct sealing connection can be achieved, for example, by welding or bonding the sealing sleeve directly to the drainage device, in particular to the connection device, especially to the receiving section of the connection device, or by injection molding the sealing sleeve onto the drainage device. An indirect connection can be achieved, for example, by sealingly connecting the sealing sleeve to a connecting body, which in turn is connected to the drainage device or the connection device of the drainage device.or is sealedly connected to the receiving section of the connection device. Such a connecting body can be sealed to the sealing sleeve, for example, by injection molding, bonding, or welding. Similarly, such a connecting body can be sealed to the drainage device, its connection device, or the receiving section of the connection device, for example, by welding, bonding, or snapping / clamping. Preferably, such a connecting body is ring-shaped, i.e., formed as a closed loop around a vertical axis. Preferably, the connecting body extends horizontally and continuously around the receiving or inlet opening. The connection area, or the area by which the sealing sleeve is exclusively sealed to the drainage device, isAccordingly, when an indirect connection is provided by means of a connecting body, the area within which the sealing sleeve is sealed to the connecting body is defined, with the sealing connection between the connecting body and the sealing sleeve occurring exclusively within this area or connection area. Preferably, the sealing sleeve is designed like a film and has a passage opening through which water can pass vertically downwards from the top of the sealing sleeve. The sealing connection between the sealing sleeve and the drainage device ensures that the passage opening of the sealing sleeve is fluid-conducting and connected to the inlet opening of the drain pot. The sealing connection between the sealing sleeve and the drainage device is thus preferably a continuous, sealed seal extending around the passage opening of the sealing sleeve.Connection. Accordingly, in the case of an indirect connection of the sealing sleeve to the drainage device, the connecting body preferably extends continuously around the through-opening of the sealing sleeve. To ensure the properties of advantageous embodiments, the sealing sleeve can be specifically designed, for example, by being constructed like a film with a very thin profile, for example, with a thickness of less than 1 mm, particularly less than 0.8 mm, particularly less than 0.7 mm, particularly less than 0.6 mm, and / or by having a three-dimensionally shaped section with which, in advantageous embodiments, it is arranged in the receiving section formed by the connecting device. For example, the sealing sleeve can be made, at least predominantly, of a material advantageous for wrinkle-free application.The sealing sleeve should be designed, for example, to be made at least predominantly of polyurethane (PU). Preferably, the sealing sleeve is designed to be laid wrinkle-free, after the construction-phase protective cover has been loosened and removed, horizontally around the entire perimeter, particularly by at least 180°, and in particular by at least 270°, on an adjacent support surface or its upper surface, at least at two opposite ends with respect to a first horizontal direction and at least one end of the drainage device with respect to a second end perpendicular to the first horizontal direction. In one embodiment, the sealing sleeve has a three-dimensionally formed or shaped section in the operating state, which has a vertically stepped profile. In the operating state, the three-dimensionally shaped section of the sealing sleeve rests against the drainage device, in particular sealing it, in particular byA receiving opening of a receiving section of a connecting device of the drainage system is sealed against the drainage system. Preferably, the section, which is three-dimensionally shaped in the operating state, extends along the vertical direction from an upper end to a lower end, being sealed to the drainage system exclusively in a region spaced apart from its upper end. More preferably, the respective specification refers to the receiving section of the connecting device of the drainage system, such that, for example, the three-dimensionally shaped section of the sealing sleeve preferably rests against the receiving section of the connecting device in the operating state or is sealed to the receiving section exclusively below its upper end. More preferably, the section of the sealing sleeve, which is three-dimensionally shaped in the operating state, extends at least along two opposing sections along a specific horizontal direction.The three-dimensionally formed section extends along the sides of the sealing sleeve's passage opening and along a connecting side of the passage opening, with which the sealing sleeve points in a horizontal direction perpendicular to the defined horizontal direction. Preferably, the section extends along both sides of the sealing sleeve's passage opening, opposite each other with respect to the direction perpendicular to the defined horizontal direction. Preferably, the three-dimensionally formed section extends continuously around the passage opening of the sealing sleeve. Preferably, the three-dimensionally formed section extends continuously and thus in a closed manner over a rotation angle of more than 180°, particularly at least 200°, and especially at least 220°, with respect to a vertical axis passing through the horizontal center of the sealing sleeve's passage opening.The three-dimensional shape of the section, as determined by the operating state, is generally preferably defined by an outer contour of the pre-assembly arrangement. This outer contour defines the path of the support layer, which abuts the drainage device in the operating state. This is because the outer contour of the pre-assembly arrangement defines the space within which a support layer can be applied adjacent to the drainage device. Thus, the contour of the pre-assembly arrangement determines the provision of the three-dimensionally shaped section of the sealing sleeve in the operating state. In one embodiment, the three-dimensionally shaped section of the sealing sleeve in the operating state is a pre-formed, particularly deep-drawn, section of the sealing sleeve. In this embodiment, the aforementioned section can therefore be intrinsically pre-formed three-dimensionally within the sealing sleeve and thus already present in theThe sealing sleeve is formed in a pre-assembled state when it is arranged in the storage volume. In another embodiment, the sealing sleeve is flat in the pre-assembled state, but to achieve the operating state, the sealing sleeve partially assumes the shape of the aforementioned three-dimensionally formed section due to the outer contour of the pre-assembled arrangement. In one embodiment, the sealing sleeve is sealed to the drainage device within its three-dimensionally formed section, and in particular, exclusively within its three-dimensionally formed section. In one embodiment, the three-dimensional section of the sealing sleeve formed in the operating state has two horizontally successive extension sections, each running at a different angle to the vertical direction in the operating state. For example, a first of the extension sections can be parallel to the vertical direction.The first extension section runs vertically, while the adjacent second extension section runs horizontally. The extension sections are thus angled relative to each other, preferably about a horizontal axis. Preferably, the sealing sleeve is sealed to the drainage device in both extension sections, particularly both in the pre-assembled and operating states. This sealing connection between the sealing sleeve and the drainage device across two mutually angled extension sections ensures a particularly reliable, strong, and durable seal between the sealing sleeve and the drainage device. Generally, the three-dimensional section of the sealing sleeve formed in the operating state preferably has a first extension section that is already formed in the pre-assembled state and with which it is sealed in both the pre-assembled and operating states.is sealedly connected to the drainage device, wherein this extension section can have the two extension sections described above, and wherein it has a further extension section that is only formed during the realization of the operating state, starting from the assembly state, and whose formation is determined by the outer contour of the pre-assembly arrangement. In one embodiment, the three-dimensionally shaped section of the sealing sleeve formed in the operating state and, in particular, already in the pre-assembly state, i.e., that planar section of the sealing sleeve which forms the three-dimensionally shaped section in the operating state, is arranged within the storage volume in the pre-assembly state; in particular, the entire sealing sleeve is arranged within the storage volume in the pre-assembly state, wherein, in particular, an extension extending outside the section formed three-dimensionally in the operating stateSection of the sealing sleeve, in particular the section of the sealing sleeve described herein, which is flat in the operating state, is folded in the pre-assembly state and located above a lower extension area of ​​the three-dimensionally formed section, wherein the lower area is formed in particular by a basin base of the sealing sleeve formed by the three-dimensionally formed section and / or by the described extension section area. Preferably, the three-dimensional section of the sealing sleeve formed in the operating state is a three-dimensionally pre-formed section of the sealing sleeve, in particular a deep-drawn section of the sealing sleeve, i.e., a section of the sealing sleeve produced by deep drawing. Preferably, the sealing sleeve is designed like a film into which the three-dimensional section is integrally formed or, when the operating state is realized, starting from theThe three-dimensionally pre-formed section differs from a flat section in that it has a vertically stepped profile, allowing it to be placed onto a corresponding vertical step without deformation. In embodiments where the three-dimensional section is only formed during the operational phase, starting from the pre-assembly state—that is, when the sealing sleeve is placed on the top of the support surface while simultaneously being sealed to the drainage device as described—a flat section of the sealing sleeve running along the support surface can, for example, be fixed to the top of the support surface by means of a sealing coating. Preferably, the three-dimensionally formed section in the operational state is trough-shaped and thus has a trough bottom and a horizontally closed area around the trough bottom.The three-dimensionally shaped section is connected to the drain assembly, particularly the receiving section, via a continuous tub side wall. Preferably, the tub bottom is sealed to this section. Preferably, an opening in the sealing sleeve is provided in the tub bottom, which, in the operating state and especially in the pre-assembly state, is connected to the inlet opening and, in particular, to the receiving opening of the receiving section of the connection device, as described above. Preferably, the design of the tub bottom, the tub side wall extending vertically from the tub bottom, and an adjacent further area of ​​the sealing sleeve create a vertically stepped profile, the further area being formed, in particular, by the flat section described above. Preferably, the area of ​​the sealing sleeve that forms the three-dimensionally shaped section in the operating state is horizontallyenclosed by a flat, foldable section. Thus, the three-dimensionally shaped section can be inserted into a corresponding three-dimensional form, or its path can be defined by the contour of this form, whereas, in the operating state, the flat, foldable section can extend horizontally away from the three-dimensionally shaped section in a horizontal plane from a vertically upper end. Naturally, the flat section can also be folded so that, in the operating state, a first surface area extends onto a horizontal upper surface of the described support surface, and a second surface area extends along a vertically extending wall, resulting in two planar sections that form an angle of approximately 90° to each other. In one embodiment, the flat section and the three-dimensionally shaped section are made of the same material.manufactured in one piece, for example by embossing a material formed as a film or by placing the section onto a form predefined by the pre-assembly arrangement, wherein the film, as explained in the present exemplary embodiments, can be multi-layered. In one embodiment, the three-dimensionally pre-formed section and the flat, foldable section differ in that the flat section can be formed without creases and placed onto a flat top surface of a body whose horizontal extent is at least equal to the extent of the flat section, whereas the three-dimensionally pre-formed section cannot be placed without creases onto the top surface of a flat body whose horizontal extent is at least equal to the horizontal extent of the three-dimensionally pre-formed section. In contrast, in one embodiment, the three-dimensionally formed section in the operating stateThe section can be formed and placed without creases on a vertically stepped top surface of a body, the horizontal extent of which corresponds at least to the horizontal extent of the three-dimensionally formed section, whereas the flat section cannot be formed without creases and cannot be placed on a correspondingly vertically stepped top surface of a body, the horizontal extent of which corresponds at least to the horizontal extent of the flat section. Preferably, the flat section in the operating state has a planar extent that is at least twice, and in particular at least three times, the planar extent of the three-dimensionally formed section in the operating state. The reference is preferably to the respective horizontal planar extent present in the operating state. In one embodiment, the sealing sleeve has a thickness of less than 1 mm across its planar extent.in particular less than 0.8 mm, in particular less than 0.7 mm, in particular less than 0.6 mm. In one embodiment, the three-dimensionally shaped section forms a step with a step height of at least 3 mm, in particular at least 4 mm, in particular at least 5 mm. Preferably, the sealing sleeve extends horizontally in a first extension area within the three-dimensionally shaped section and vertically over said step in a second extension area, wherein the flat section directly adjoins the second extension area and runs horizontally from the second extension area in the operating state. Preferably, the second extension area has a first horizontal sub-area and a second horizontal sub-area and in particular a third horizontal sub-area, wherein the first and the second horizontal sub-areas are angled at least 90° to each other andIn particular, the third horizontal section is angled at least 90° to the second horizontal section, with the flat section directly adjoining the three-dimensionally shaped section along all horizontal sections. Thus, the three-dimensionally shaped section allows for a wrinkle-free, yet vertically stepped arrangement of the sealing sleeve in the operating state. For example, a fourth horizontal section can be provided, angled at 90° to the third section, so that the first, second, third, and fourth sections form a continuous ring around the first extension. For example, the three-dimensionally shaped section can be trough-shaped, with the first extension being formed by the trough bottom and the second extension by the trough side wall. Preferably, in the operating state, the preferably provided connecting element with at leasta portion of its horizontal extent within the three-dimensionally shaped section of the sealing sleeve. In one embodiment, the receiving section of the preferably provided connecting device is formed by a vertically stepped progression of the connecting device, wherein, at least in the operating state and particularly in the pre-assembly state, the sealing sleeve with the three-dimensionally shaped section is arranged in the receiving section, and the three-dimensionally shaped section with its stepped progression follows the vertically stepped progression of the receiving section, so that the receiving section and the three-dimensionally shaped section of the sealing sleeve preferably have corresponding vertically stepped progressions. In one embodiment, the drainage device together with the construction-phase protective cover forms an arrangement with a three-dimensional body section in the pre-assembly state, which extends from theThe screed edge extends vertically downwards. Preferably, the three-dimensional section of the sealing collar formed in the operating state follows the shape of the three-dimensional body section, wherein, in particular, the three-dimensional body section of the arrangement has the same shape as the three-dimensionally shaped section of the sealing collar. Thus, the arrangement formed by the drainage device and the construction protection cover can form a body with such a three-dimensionally shaped body section that, when a supporting layer is applied around the arrangement, the shape of the body section is imprinted into the supporting layer, after which the section of the sealing collar formed three-dimensionally in the operating state can be inserted into the shape created in the supporting layer by the arrangement without creases, so that it lies flat and without creases continuously against the supporting layer over the area of ​​the supporting layer, which is defined by the three-dimensionalThe body section forms a predetermined shape. Preferably, the three-dimensionally formed section of the sealing sleeve in the operating state thus has the same shape as the three-dimensional body section, wherein the shape of the three-dimensionally formed section of the sealing sleeve in the operating state can be formed by placing it on the shape of the support surface or can be pre-formed and embossed into the sealing sleeve. Preferably, a horizontal, in particular flat, upper surface of the support surface adjoins this area of ​​the support surface, onto which the flatly formed section of the sealing sleeve can be flatly formed and placed. In one embodiment, the construction-phase protective cover has a closable access opening on its upper surface, which is fluid-carrying in the pre-assembly state of the drainage system and connected to the inlet opening of the drain pot. Preferably, the drainage system includes a closure element for releasably closing the access opening. The closure element canFor example, it can be designed as a removable lid, which can be, for instance, a dimensionally stable plastic lid or a reversibly adhesive peel-off lid. By providing the access opening, the inlet opening of the drain pot can be accessed in the pre-assembled state for drainage tests on a wastewater pipe or wastewater pipe system that is connected to the outlet opening of the drain pot in the pre-assembled state. In one embodiment, the construction-phase protective cover has a pipe stub that forms the access opening and which, in the pre-assembled state, extends vertically downwards from the access opening to the inlet opening of the drain pot, wherein the sealing sleeve is arranged in the storage volume and exclusively outside the horizontal extent of the clear cross-section of the pipe stub in the pre-assembled state, wherein, in particular, the pipe stub is accessible through the opening of the sealing sleeve described above in the pre-assembled state.extends through. In one embodiment, the construction-time protection cover consists of several cover parts. The construction-time protection cover is thus preferably designed in multiple parts. In one embodiment, the several cover parts are detachably attached to one another in the pre-assembled state. Preferably, at least two of the cover parts of the construction-time protection cover are snapped together in the pre-assembled state. Preferably, at least two of the cover parts are bonded together by means of an adhesive strip, so that an adhesive strip is provided which is detachably bonded to the at least two cover parts and thereby detachably connects these cover parts to one another. Preferably, the at least two cover parts are made of plastic. Preferably, the cover parts are manufactured as separate elements and thus independently of one another as separate elements, in particular each made of plastic by means of an injection molding process. In one embodiment, a first cover part forms theThe screed edge is formed, preferably exclusively by the first cover part. In one embodiment, a second cover part has a smaller horizontal extent than the first cover part. Preferably, the first cover part extends horizontally beyond the second cover part in the pre-assembled state. Preferably, the first cover part with its screed edge extends at least 5 mm, and in particular at least 10 mm, beyond the second cover part. Thus, a minimum horizontal distance of at least 5 mm, and in particular at least 10 mm, is provided between the screed edge and the horizontal end of the second cover part. Providing a first and second cover part offers the particular advantage that the first cover part can define the screed edge and can therefore be used for applying or shaping a load-bearing layer, whereas the second cover part protects the drainage device.and / or the sealing sleeve can also serve after the first cover part has been removed. Preferably, the first cover part forms a section of the described three-dimensional body segment. Preferably, only the first cover part, but not the second cover part, defines the contour of the upper surface of the support layer, with which the upper surface of the support layer abuts or extends towards the drainage device. Preferably, the first and second cover parts are interlocked. In one embodiment, the second cover part has a greater horizontal extent than the sealing sleeve arranged in the storage volume in the pre-assembled state, with the second cover part being designed to cover the sealing sleeve arranged in the storage volume. It should be taken into account that the sealing sleeve is shaped, in particular folded, in the pre-assembled state such that it is arranged within the storage volume. ThusIn its pre-assembled state, the sealing sleeve has a defined shape and thus a defined horizontal extent. Since the second cover part has a larger horizontal extent than the sealing sleeve in its pre-assembled state (i.e., when positioned in the storage volume), the second cover part can serve both to protect the sealing sleeve in its pre-assembled state and, after the first cover part has been separated from the second, to protect the sealing sleeve and, in particular, the drainage device, especially the inlet opening of the drain pot or the receiving opening of the connecting section of the drainage device. This applies when, after the pre-assembled state, the first cover part has been removed from the second and, for example, a sealant is applied to the top of the support surface around the drainage device, onto which the sealing sleeve is then to be placed. In one embodiment, the second cover part has the describedThe access opening of the construction-phase protection cover is provided. Thus, both in the pre-assembled state and subsequently after removal of the first cover part, the second cover part ensures protection of the sealing sleeve and the inlet opening of the drain pot, while still allowing access to the drain pot and its inlet opening, for example, for testing purposes. Accordingly, the described pull-off cover can be provided on the second cover part. In one embodiment, the second cover part has a pipe stub extending downwards from the access opening. The pipe stub can be aligned with the inlet opening of the drain pot when the drainage system is in the pre-assembled state. The second cover part can therefore preferably form the pipe stub of the construction-phase protection cover described above. In one embodiment, the sealing sleeve extends circumferentially around the pipe stub in the pre-assembled state.so that it is arranged circumferentially around the pipe stub, the pipe stub extending downwards beyond the sealing sleeve, namely towards the inlet opening of the drain pot. In one embodiment, the several cover parts, or at least some of the several cover parts, in particular the first and second cover parts described above, can be bonded together by means of an adhesive strip and thus be detachable from one another by removing the adhesive strip. In one embodiment, the construction-phase protection cover is screwed to the drain device in the pre-assembled state. This allows for a particularly robust fixation of the construction-phase protection cover to the drain device, which may be particularly necessary if a sealing sleeve stored in the storage volume exerts vertical pressure between the drain device and the construction-phase protection cover. Preferably, in the pre-assembled state, the first cover part is screwed to the drain device, with the secondThe cover part is held fixed between the drainage device and the first cover part by screwing the first cover part to the drainage device. Preferably, the second cover part is positioned between the first cover part and the drainage device in the pre-assembled state and is held in a positionally fixed relative to the first cover part and the drainage device by fixing the first cover part relative to the drainage device. Preferably, at least the second cover part is made, at least partially, and in particular at least predominantly, of transparent plastic. Preferably, both the first and second cover parts are made of plastic, and preferably, the construction-phase protective cover is made of plastic. Preferably, the plastic components can be manufactured by injection molding. In one embodiment, the drainage device has a connecting device for fluid-carrying theThe discharge opening is formed with the inlet opening. The connecting device can, for example, be designed in the form of a pipe, wherein, in the operating state, the channel outlet is inserted into an upper end of the pipe and the lower end of the pipe is sealed via a sealing pipe joint to a pipe outlet of the drain bowl, which forms the inlet opening of the drain bowl. The connecting device can, for example, be funnel-shaped, wherein the channel outlet is inserted into the upper end of the connecting device and the lower end of the connecting device is inserted into the inlet opening of the drain bowl, wherein preferably a detachable or permanent sealing connection is realized between the inlet opening and the connecting device on the one hand, and the channel outlet and the connecting device on the other. The connecting device has a receiving section and a section arranged below the receiving section.Connecting section. In one embodiment, the drainage system has a connecting element that is horizontally displaceable on the receiving section during operation. Thus, while the connecting device links the inlet opening to the outlet opening along the vertical direction during operation, the connecting element is horizontally displaceable, and therefore perpendicular to the vertical direction, on the receiving section formed by the connecting device. In another embodiment, the connecting element is only transmissible translationally in one or two mutually perpendicular horizontal directions relative to the receiving section during operation. In yet another embodiment, the connecting element is rotatable about a vertical axis on the receiving section. The connecting element can, for example, be designed in the form of a plate that, with itsThe plate surface extends horizontally, and its thickness defines its length in the vertical direction. The connecting device also includes a connecting section arranged below the receiving section. Preferably, the receiving section and the connecting section are formed by a single component, in particular a plastic component. More generally, the connecting element preferably surrounds the channel outlet horizontally in the operating state, with the discharge opening opening into the connecting section. Thus, by horizontally surrounding the channel outlet, its position is fixed horizontally relative to the connecting element, while a fluid-carrying connection exists between the discharge opening of the channel outlet and the inlet opening of the drain pot. In general, the connecting element can, in one embodiment, be encompassed by the drain channel, for example, arranged on the channel outlet, and in particular, be formed integrally with it.The connecting element can be manufactured as a channel outlet, or alternatively, it can be encompassed by the connecting device and designed as a component separate from the drainage channel, in particular as a component separate from the receiving section, and have an opening in which the channel outlet is arranged in the operating state of the drainage system. When integrating the connecting element into the drainage channel, the connecting element can, for example, be designed in the manner of a flange formed on the channel outlet, the flange itself being designed in the manner of a plate. In embodiments in which the connecting element is encompassed by the connecting device, the connecting element can, for example, be designed as a separate element, which in one embodiment is already arranged within the storage volume in the pre-assembled state and rests on the receiving section, and in another embodiment in theIn its pre-assembled state, the connecting element is spaced apart from the receiving section and positioned outside the storage volume. It is only placed on or connected to the receiving section to achieve operational status. In one embodiment, the connecting element has an opening in which, during the intended operating state of the drainage system, the channel outlet is arranged such that the connecting element horizontally surrounds the channel outlet, and the discharge opening of the drainage channel formed by the channel outlet opens into the connecting element. During operation, the connecting element is sealed to the inlet opening of the drain bowl. This ensures that, during operation, water discharged downwards from the discharge opening of the drainage channel is guided through the connecting element to the inlet opening of the drain bowl. The receiving section and connecting element are preferably aligned with each other in this manner.The connecting element is designed so that in every possible horizontal position relative to the receiving section, an intended operating state as described above can be achieved, in which the channel outlet is arranged in the opening of the connecting element or connected to the connecting element, and the discharge opening leads into the connecting section. Preferably, in the operating state, the channel outlet is arranged in the opening of the connecting element such that the connecting element seals around the channel outlet, or the connecting element is designed as a flange that is closed and circumferential around the channel outlet. The receiving section of the connecting device is generally preferably designed to correspond to the sealing sleeve of the drainage system and / or to the temporary construction cover of the drainage system. In one embodiment, the receiving section, together with the temporary construction cover, encloses theIn the pre-assembly state, the storage volume is defined. Preferably, the storage volume in the pre-assembly state is defined by the receiving section and the construction-time protection cover. In one embodiment, the construction-time protection cover and the receiving section form an arrangement with a three-dimensional body section in the pre-assembly state, wherein the three-dimensional body section extends vertically downwards from the screed edge, as explained in advantageous embodiments, and wherein the sealing sleeve has a three-dimensionally shaped section in the operating state that has the same shape as the three-dimensional body section. The arrangement can correspond to the pre-assembly arrangement explained in the embodiments or as a solution according to the invention. Preferably, the aforementioned shape has a greater horizontal extent than the connecting element. Preferably, in the operating state and especially in the pre-assembly state, the three-dimensionally shaped section of theThe sealing sleeve is connected to the receiving section of the connecting device in a sealing manner, in particular by means of a horizontally circumferentially sealing connection to the receiving section via a receiving opening provided in the receiving section. Preferably, in the operating state, the connecting element lies horizontally within the three-dimensionally shaped section of the sealing sleeve and is horizontally displaceable within the three-dimensionally shaped section of the sealing sleeve, in particular rotatable about a vertical axis on the receiving section. Preferably, in the operating state, an opening provided in the sealing sleeve, the inlet opening, and in particular the receiving opening, and in particular an opening provided in the connecting element are connected to each other in such a way that wastewater can pass from the outlet opening through all these openings to reach the outlet opening of the drain pan. Preferably, in the operating state, theThe receiving section itself, or the three-dimensionally shaped section of the sealing sleeve arranged on the receiving section, forms a horizontal stop for the connecting element, limiting the horizontal displacement of the connecting element in the operating state or its rotation about the vertical axis. In one embodiment, the connecting element rests on the receiving section in the operating state and is displaceable in a first horizontal direction, and in particular in a second horizontal direction perpendicular to the first, with a clearance of at least 5 mm, in particular at least 8 mm, in particular at least 10 mm, in particular at least 15 mm, so that it can be displaced horizontally by the aforementioned clearance while resting on the receiving section, and / or is rotatable about a vertical axis with an angular clearance of at least 1°, in particular at least 2°, so that while resting on the receiving sectionrests on the receiving section and can be rotated about a vertical axis by at least 1°, in particular at least 2°, in the operating state. In one embodiment, the connecting element rests directly on the receiving section in the operating state; in another embodiment, it rests indirectly, wherein a section of the sealing sleeve, in particular at least a region of the three-dimensionally shaped section of the sealing sleeve, is arranged between the receiving section and the connecting element, wherein in particular the connecting element rests directly on the sealing sleeve. In one embodiment, the receiving section forms a stop to limit the horizontal play or the rotational play; in another embodiment, the three-dimensionally shaped section of the sealing sleeve forms a stop for the horizontal play or the rotational play. In one embodiment, the receiving section or the sealing sleeve arranged on the receiving section, in particular theThe three-dimensionally shaped section of the sealing sleeve has a horizontally circumferential boundary around the connecting element, such that the connecting element is fixed in the operating state to a horizontal position range defined by the receiving section relative to the connecting section of the connecting device. In one embodiment, the receiving section or the sealing sleeve arranged on the receiving section, in particular the three-dimensionally shaped section of the sealing sleeve, has a greater vertical extension than the connecting element. In one embodiment, the connecting element is arranged completely horizontally within the receiving section in the operating state, with the receiving section preferably extending at least horizontally, and in particular horizontally and vertically, beyond the connecting element. Preferably, the sealing sleeve is located within the receiving section, in particular around a receiving opening of theThe receiving section is closed and circumferentially connected to the connecting device, particularly exclusively within the receiving section, or horizontally and circumferentially around the receiving section, sealing it. Preferably, in the operating state, the connecting element is movable at least horizontally, and particularly also vertically, relative to the entire sealing sleeve. Preferably, the channel spigot can be arranged in different vertical positions relative to the connecting element within the opening of the connecting element to achieve different operating states, while the connecting element is always arranged in the same vertical position relative to the receiving section. Preferably, the channel spigot can be changed in its vertical position relative to the connecting element while it is arranged in the opening of the connecting element and while the connecting element remains in the same position relative to the receiving section. At this point,It is generally pointed out that the term "operating state" in this context preferably refers to an intended operating state, whereby various intended operating states are generally preferable, in each of which the drainage system is designed as described here for exemplary embodiments with reference to one operating state each. In one embodiment, the connecting element has an opening, as explained for the present embodiments, in which the channel outlet is arranged in the operating state of the drainage system. The connecting element has a pipe section extending with its pipe axis along the vertical direction, the clear cross-section of which forms the opening of the connecting element. In each operating state of the drainage system, the channel outlet is arranged in the pipe section, and the channel outlet and the pipe section are arranged in different ways.Operating states overlap over a different vertical overlap length. The channel outlet is thus positioned within the pipe outlet over this overlap length. Starting from a specific operating state, the vertical position of the drainage channel relative to the connecting element can be changed by altering the overlap length between the pipe outlet and the channel outlet. By providing the pipe outlet, even a short vertical extension of the channel outlet can be used for installing the drainage system in various floor types with different floor covering thicknesses. In particular, a vertical extension of the pipe outlet of less than 25 mm, and especially less than 20 mm, may be sufficient. The aforementioned different operating states differ in their vertical position, specifically solely in the vertical position that the drainage channel holds relative to the connecting element.Providing the pipe stub on the connecting element ensures particularly good guidance of the channel stub relative to the connecting element and, in particular, particularly good water flow. Preferably, the connecting element can be arranged on the receiving section in two positions rotated 180° relative to each other about a horizontal axis to implement two different operating states of the drainage system. This can generally be advantageous with an asymmetrical design of the connecting element. Particularly preferably, the connecting element has the described pipe section, wherein the pipe section projects further beyond a horizontally surrounding area of ​​the connecting element on a first vertical side than on a second vertical side of the connecting element opposite the first. The connecting element runs between the first and second vertical sides.This determines the vertical ends of the connecting element. For example, the pipe section can only be positioned on the first vertical side of the connecting element. By allowing the connecting element to be arranged on the receiving section in two positions rotated 180° relative to each other about a horizontal axis, and by having the pipe section project further on the first vertical side of the connecting element than on the second, different vertical adjustability of the drainage channel's position relative to the connecting element can be ensured in each of the two rotated positions. For example, while the first vertical side of the connecting element points upwards in the first of the two positions, it points downwards in the second position. Accordingly, the drainage channel can be positioned further vertically away from the receiving section in the first position than in the second position, with the following adjustments possible in both positions.In the second position, the connecting element rests on the receiving section. In one embodiment, the receiving section of the connecting device has a frame area that extends horizontally around the channel outlet in the operating state, with the sealing sleeve being sealed to the frame area. The frame area can be designed as a flange, at least partially, extending horizontally. Preferably, the frame area forms an absolute vertical end, namely the vertically upper end of the connecting device in the operating state. The sealing sleeve can be sealed directly to the frame area and / or to an area of ​​the connecting device adjacent to the frame area, particularly one encompassed by the receiving section. Preferably, the sealing sleeve is sealed to the drainage device exclusively within the frame area, so that the described area or connection area of ​​the sealing sleeveis directly connected to the frame area. As explained, the frame area can project horizontally beyond the connection area, i.e., extend horizontally outwards from the connection area and / or vertically upwards. Preferably, the receiving section has a receiving opening through which water escaping from the discharge opening of the gutter spigot can be drained into the connection section of the connecting device during operation. Preferably, the sealing sleeve is horizontally circumferentially connected to the connecting device, in particular to the receiving section, in a sealing manner. In the respective embodiments, a completely closed and thus uninterrupted horizontal circumferential connection is generally advantageous. Preferably, the frame area forms a circumferential horizontal end of the sealing device; preferably, the frame area formsThe connecting element comprises two opposing absolute horizontal ends in a specific horizontal direction, particularly along two mutually perpendicular horizontal directions. In one embodiment, the receiving section is designed as an upwardly open trough, which has a trough opening in its base connected to the connecting element. Preferably, the trough opening is connected to the discharge opening of the drain channel in the operating state, so that water exiting downwards from the discharge opening can pass through the trough opening into the connecting element and from there into the drain pot. The trough opening can form the receiving opening described herein or be identical to it. Preferably, the connecting element rests horizontally displaceably on the trough base. Preferably, the connecting element is accessible from above.The connecting element is removable and arranged within the tub. Preferably, the connecting element rests on the tub floor over at least 50%, particularly at least 70%, and particularly at least 80% of its horizontal extent. Preferably, the tub floor extends beyond the connecting element in at least one horizontal direction, such that the connecting element is slidably arranged in the receiving section in this horizontal direction, resting on the tub floor and thus being slidably displaceable. Preferably, the tub floor also extends beyond the connecting element in a further horizontal direction perpendicular to the aforementioned horizontal direction, such that the connecting element is also slidably displaceable in this further horizontal direction, resting on the tub floor relative to the receiving section, and is thus arranged with some play in the receiving section with respect to this further horizontal direction.In one embodiment, the three-dimensionally shaped section of the sealing sleeve can be designed in the form of an upwardly open trough, which has a trough opening in its base that, in the operating state, is connected to the connecting section and / or to the receiving opening of the receiving section. In another embodiment, the receiving section and the three-dimensionally shaped section of the sealing sleeve are each designed in the form of a trough, with the trough-like three-dimensionally shaped section lying within the trough shape of the receiving section. In yet another embodiment, only the receiving section or only the three-dimensionally shaped section of the sealing sleeve is designed in the form of a trough. The present explanations concerning the interaction of the connecting element with the trough shape of the receiving section are applicable accordingly to the interaction with the trough shape of the three-dimensionally shaped section of the sealing sleeve.In this embodiment, the connecting element can be arranged in two positions on the receiving section that differ by 180° about a vertical axis, thus enabling two different operating states of the drainage system. Preferably, the connecting element can only be arranged in the two different positions by first removing it from the receiving section or vertically removing it from the receiving section, then rotating it by 180°, and then placing it back onto the receiving section or reinserting it into the receiving section. The ability to arrange it in two positions offset by 180° allows for even greater variability of the drainage system. In particular, the receiving section and the connecting element are designed to correspond to each other such that, in the first of the two positions rotated by 180° relative to each other, the connecting element or the opening of the connecting element is only accessible up to a first minimum distance.in the first horizontal end of the connecting device, the connecting element or opening can be arranged at a first horizontal end of the connecting device, whereas in the second of the two positions rotated by 180°, the connecting element or opening can only be arranged at a second minimum distance relative to said horizontal end of the connecting device, wherein the first minimum distance is greater than the second minimum distance, in particular by at least 1 cm, and in particular by at least 2 cm. The said horizontal end limits the drainage device in a certain horizontal direction, and the distance between the connecting element or opening and the horizontal end is measured along this certain horizontal direction. The minimum distance, in the respective position, denotes the minimum distance to which the opening of the connecting element can be approached the horizontal end of the drainage device. In such embodiments, in which the connecting element is in theSince the connecting element is arranged in the receiving section in a manner displaceable in the respective horizontal direction, the minimum distance between the opening and the respective horizontal end is thus achieved when the connecting element is positioned as close as possible to the respective horizontal end within its displaceability while mounted on the receiving section. In one embodiment, the connecting element is elongated in a horizontal longitudinal direction, and is asymmetrically shaped in a transverse direction perpendicular and horizontal to the longitudinal direction, wherein, in particular, the opening in the transverse direction is arranged off-center, i.e., eccentrically, so that the opening is less far from a first transverse end of the connecting element than from a second transverse end of the connecting element. The longitudinal and transverse directions can be the mutually perpendicular directions described in other embodiments.The connecting element must be in the horizontal directions, in particular the first and second horizontal directions, in which it is preferably arranged with clearance on the receiving section. In one embodiment, the longitudinal length of the connecting element is at least 1.5 times, and in particular at least twice, the transverse length (width) of the connecting element. In another embodiment, the longitudinal length of the opening of the connecting element is at least 1.5 times, and in particular at least twice, the transverse length (width) of the opening. The elongated design allows the drainage system to be positioned very close to a wall and, in particular, enables sufficient wastewater drainage capacity, i.e., the removal of a high volume of wastewater per unit of time.In this embodiment, the longitudinal length of the discharge opening is at least 1.5 times, and in particular at least twice, the transverse length (width) of the discharge opening of the connecting element. In one embodiment, the transverse center of the connecting section is offset from a transverse center of the receiving section. Preferably, the offset of the transverse center of the connecting section is combined with the elongated design of the connecting element or its opening described above and with the ability to seal the connecting section to the inlet opening in various rotational positions of the drain pot relative to the connecting section. The connecting section is preferably designed in the form of a cylinder with a cylinder axis that defines the transverse center of the connecting section. The transverse center of the receiving section and the transverse center of the connecting section are each located along the longitudinal extent of the connecting section.The minimum distance described is preferably a distance along the transverse direction, wherein the opening has a different minimum distance to the associated transverse end, i.e., the end that limits the connecting device in the transverse direction, in the two different positions rotated by 180°. Preferably, the connecting section can be arranged in different rotational positions relative to the drain pot with respect to a vertical axis, in particular in at least two rotational positions rotated by 90°, in particular in at least three rotational positions rotated by 90° to each other, and in particular continuously rotatable about the vertical axis in different rotational positions relative to the drain pot and sealingly connected to it to realize a specific operating state. By arranging the opening off-center in the transverse direction or by designing the connecting element asymmetrically in the transverse direction,Particularly high variability can be provided, for example, by combining the decentralized arrangement of the opening with the ability to arrange the connecting element in two positions rotated by 180° and / or in combination with offset arrangements of the transverse center of the connecting section relative to the transverse center of the receiving section, especially in combination with providing horizontal play of the connecting element relative to the receiving section. In particular, in one advantageous embodiment, the drainage system can be designed for installation on walls with a wall covering, wherein the variability of the system allows the wall covering to have different thicknesses, especially thicknesses between 8 mm and 21 mm. A preferred design is achieved solely by different arrangements of the connecting element on the receiving section, especially by the described modification of one of the two positions rotated by 180° about the vertical axis.Positions and, by means of the described displacement of the connecting element, the drainage channel can be arranged in two different operating states relative to the drainage device, which differ from each other by at least 10 mm, in particular at least 12 mm, along the transverse direction. In one embodiment, the drainage opening of the drainage channel and / or the opening of the connecting element and / or the receiving opening of the receiving section is elongated. Preferably, the drainage opening or opening or receiving opening is elongated in the described longitudinal direction. Preferably, the opening or drainage opening or receiving opening has, in a first horizontal direction, in particular the longitudinal direction, at least 3 times, in particular at least 5 times, in particular at least 10 times the extension length in a second horizontal direction perpendicular thereto, in particular the transverse direction. In one embodiment,The drain opening has a length L of at least 10 cm, in particular at least 15 cm, and in particular at least 20 cm. In one embodiment, the drain opening has a width B of at most 10 mm, and in particular at most 8 mm. In one embodiment, the receiving opening has a length of at least 10 cm, in particular at least 15 cm, and in particular at least 20 cm. In one embodiment, the receiving opening has a width of at least 2 cm, in particular at least 3 cm, and preferably a width of less than 5 cm, and in particular less than 4 cm. In one embodiment, the opening of the connecting element has a length of at least 10 cm, in particular at least 15 cm, and in particular at least 20 cm. More preferably, the opening of the connecting element has a length L, where L > (L - 5 mm), in particular L > (L - 3 mm), and in particular L > (L - 2 mm). More preferably, the opening of the connecting element has a width B, whereB > (B - 5 mm), in particular B > (B - 3 mm), in particular B > (B - 2 mm). By ensuring that the opening of the connecting element is as close as possible in its dimensions to the outlet opening, it can be ensured that wastewater from the outlet opening can enter the drainage device through the largest possible clear cross-section. Generally preferably, the clear cross-section of the discharge opening is at least 80%, in particular at least 90%, in particular at least 95% of the clear cross-section of the outlet opening. In the preceding embodiments, length refers to the longitudinal length, and width to the transverse length. In one embodiment, the connecting device has a connecting unit corresponding to the inlet opening and the connecting section for sealing the connection section to the outlet pot. The connecting unit can, for example, be of the type of a pipe clamp with a sealing ring.and / or sealing half-shells and / or in the manner of an elastic sealing pipe section and / or by means of a curing adhesive. The connecting unit is generally preferably designed to provide a detachable or permanent sealing connection between the inlet opening or the section of the drain pot surrounding the inlet opening and the connecting section. The drain pot preferably has a pipe stub that forms the inlet opening. In one embodiment, the connecting section is designed in the manner of a pipe with a pipe length and can be cut to length at its lower end to shorten its pipe length, whereby it can be sealed to the drain pot by the connecting unit at any pipe length adjustable by such cutting. This allows the length of the connecting section to be specifically adjusted to the respective conditions of a room floor as required, for example, to the thickness of the flooring.A load-bearing layer applied to a subfloor, in which at least the drain pot, and in particular the entire sealing device, is integrated during intended use. In one embodiment, the connecting unit is designed to correspond to the drain pot and the connecting section such that the connecting unit ensures a sealing connection of the connecting section relative to the inlet opening of the drain pot in various rotational positions of the drain pot relative to the connecting section. The different rotational positions differ with respect to a rotation of the drain pot relative to the connecting section about a vertical axis. By enabling a sealing connection between the drain pot and the connecting section, or between the connecting section and its inlet opening, at different rotational positions of the connecting section relative to the drain pot, a particularly high variability of theA drainage system may be provided. For example, this may allow the drainage channel to be integrated into a room floor in such a way that it extends longitudinally, with the flow channel of the drain pot optionally running either longitudinally or transversely, depending on the set rotational position of the drain pot relative to the connecting section, so that the flow direction of wastewater through the flow channel of the drain pot can optionally run transversely or longitudinally. Accordingly, it may be provided that, with the drainage channel remaining in the same position in a room, the drain pot can optionally be connected to a wastewater pipe whose axis runs longitudinally, or alternatively to a wastewater pipe whose axis runs transversely. In one embodiment, the drainage device has a flow channel which, with itsThe channel runs in a flow direction towards the outlet opening and its inner wall, perpendicular to its course, defines a clear cross-section for conveying wastewater. Wastewater is defined as water that, during operation, flows from the discharge opening through the inlet opening into the drain basin and is discharged from the drain basin through the outlet opening to a wastewater pipe. The flow direction is thus the intended flow direction of wastewater in the flow channel formed by the drainage device. The flow channel extends from an opening in the drainage device, into which, during operation, the wastewater is intended to be discharged from the discharge opening of the channel spigot, to the outlet opening of the drain basin. In one embodiment, the flow channel extends from the inlet opening of the drain basin to the outlet opening of the drain basin, so that the beginning and end of theThe flow channel is defined by the inlet and outlet openings of the drain pot, and thus the flow channel is located exclusively within the drain pot. In another embodiment, the drain device has a connecting element with a receiving section and a receiving opening, the flow channel extending from the receiving opening of the connecting element to the outlet opening of the drain pot. The clear cross-section is perpendicular to the channel's path. Thus, the clear cross-section limits the flow cross-section of wastewater flowing from the inlet opening through the flow channel to the outlet opening. In one embodiment, the clear cross-section has a vertical height of less than 30 mm, particularly less than 20 mm, and particularly less than 17 mm, at least in sections along the channel's path.Preferably, the clear cross-section along the channel has a continuous vertical height of at least 8 mm, in particular at least 8.5 mm, and in particular at least 9 mm. In one embodiment, the drain pot has a DN40 or DN50 pipe connection. A DN40 or DN50 pipe connection is a standardized pipe connection that can be connected to a DN40 or DN50 wastewater pipe, respectively, via a standard connector. In one embodiment, the drain pot has a DN40 pipe connection that forms the outlet opening of the drain pot, wherein the clear cross-section of the flow channel has a minimum vertical height of less than 15 mm, in particular less than 14 mm, and in particular less than 13 mm, along its channel length. In one embodiment, the drain pot has a DN50 pipe connection, wherein the flow channel has a clear cross-section that has a minimum vertical height of less than 15 mm, in particular less than 14 mm, and in particular less than 13 mm, along its channel length.The vertical extension length or vertical height is less than 17 mm, in particular more than 12 mm, and in particular more than 13 mm. Generally preferably, the clear cross-section of the flow channel has a value over its entire length that is at least 60%, in particular at least 65%, in particular at least 70%, and in particular at least 75% of the clear cross-section of the outlet opening of the drain pot, wherein, in particular, the clear cross-section of the flow channel within its entire length has a minimum value that is less than 90%, in particular less than 85%, of the clear cross-section of the outlet opening of the drain pot. By providing a consistently large clear cross-section, but reducing it section by section, both a high drainage capacity and sufficient turbulence can be advantageously ensured. A low vertical height of theDue to the small cross-section of the flow channel, the drainage device can be designed to be particularly space-saving, allowing for a thin supporting layer. Preferably, the flow channel is formed by the drainage basin. In one embodiment, the inner wall of the flow channel forms a vortex geometry, at least within a vortex section running along the channel's path, to generate a rotational momentum around a channel central axis for wastewater flowing through the flow channel along the inner wall. The channel central axis is defined by connecting the centers of the clear cross-sections along the channel's path. The vortex geometry formed by the inner wall of the flow channel generates a rotational momentum around the channel central axis for wastewater flowing through the flow channel along the flow direction, which inevitably flows along the inner wall.Flow impulse geometry can be formed, for example, at least partially by ramp sections extending obliquely to the channel's central axis, which are formed by the channel's inner wall. The vortex impulse geometry can be formed, for example, by a web provided on the channel's inner wall in the manner of a helical section. In one embodiment, the drain pot is manufactured in one piece from plastic, with the vortex impulse geometry integrated into the one-piece plastic drain pot. In another embodiment, the vortex impulse geometry is formed by at least one separate component that is inserted into a plastic base body of the drain pot and forms a section of the channel's inner wall. In one embodiment, the channel's inner wall of the flow channel extends, at least within a vortex section of the flow channel running along the channel's course, arounda channel central axis is coiled. In one embodiment, the vortex momentum geometry is formed by the coiled course of the channel inner wall around the channel central axis. For example, the coiled course of the channel inner wall can be designed such that the clear cross-section has its maximum extent in a first cross-sectional direction in a first position along the channel course and has its maximum extent in a second cross-sectional direction in a second position along the channel course, wherein the first and second cross-sectional directions are angled relative to each other with respect to an axis of rotation that passes through the centers of the two clear cross-sections. Due to the coiled course of the channel inner wall within the vortex section, a rotational momentum can be generated particularly advantageously by the channel inner wall, which acts on wastewater flowing along the channel inner wall through the flow channel, wherein theRotational momentum is applied to the wastewater, imparting a rotation around the channel's central axis. The coiled shape of the channel's inner wall and the corresponding generation of rotational momentum in the wastewater result in particularly advantageous flow dynamics within the flow channel. This can be especially beneficial for ensuring a high flow velocity, measured in liters per second, of wastewater through the flow channel, particularly when a large volume of water flows into the inlet, which could potentially lead to water accumulating on the floor surface. The inventors have surprisingly discovered that the coiled shape of the channel's inner wall, and thus the creation of a vortex momentum geometry, results in a vortex-like flow through the drainage system, ensuring a high flow velocity even under heavy loads.High flow velocities of wastewater through the flow channel can be achieved. Furthermore, the winding course of the channel's inner wall can also create turbulence of the wastewater along the channel's inner wall, thus preventing the deposition of dirt on the channel's inner wall as far as possible. In one embodiment, the channel's inner wall forms an unevenness arrangement, at least within a turbulence section running along the channel's course. The unevenness arrangement can, for example, be formed integrally in a one-piece component, particularly a plastic component, through which the drain bowl is formed, or it can be formed by at least one separate element arranged in such a component. The unevenness arrangement can, for example, be designed as a projection arrangement that constricts the clear cross-section of the flow channel section by section, namely at the level of the projections, or as a recess arrangement inThe inner wall of the channel is provided with a feature that increases the clear cross-section of the flow channel for the recesses. Due to the arrangement of irregularities, the inner wall of the channel within the turbulence section is not smooth; instead, the irregularities create turbulence for the wastewater flowing along the inner wall. While the inner wall of a flow channel in a drainage system is usually designed to be as smooth as possible to prevent the deposition of contaminants, the invention takes a different approach with the present embodiment. The inventors have recognized that, contrary to conventional assumptions, the targeted provision of turbulence by means of an arrangement of irregularities formed by the inner wall of the channel, and thus directly limiting the clear cross-section, effectively reduces or prevents the deposition of dirt on the inner wall. In aIn one embodiment, the clear cross-sectional area changes by less than 10%, in particular by less than 5%, and in particular by less than 1%, across the entire vortex section, starting from its maximum value present in the vortex section. In another embodiment, the clear cross-sectional area changes by less than 10%, in particular by less than 5%, and in particular by less than 1%, across the entire turbulence section, starting from its maximum value present in the turbulence section. In another embodiment, the unevenness arrangement is provided on a wall section of the channel's inner wall that delimits the flow channel at its lower end. Thus, the unevenness arrangement is provided precisely on such a section of the channel's inner wall where, due to gravity, the deposition of contaminants is likely. In another embodiment, the unevenness arrangement has at least two arrangement sections whichThe arrangement sections are spaced apart from each other in a direction perpendicular to the channel's course by a smooth intermediate section. This direction preferably also extends perpendicular to the vertical. In this particularly advantageous embodiment, comprising at least two arrangement sections, an intermediate section is provided that is smoother than the arrangement sections of the uneven arrangement separated from each other by it. Thus, the smooth intermediate section ensures that wastewater flows through the channel with minimal resistance, while the arrangement sections of the uneven arrangement adjacent to the smooth intermediate section still generate sufficient turbulence in the wastewater to prevent the deposition of contaminants as much as possible. In one embodiment, the channel's central axis runs between the arrangement sections.This ensures a particularly effective and low-friction flow of wastewater through the flow channel, despite the advantageous arrangement sections. In one embodiment, the unevenness arrangement comprises several ribs spaced apart from one another along the channel's course. Preferably, the ribs extend along the channel's course and are spaced apart from one another by a distance along the channel's course, wherein the extension of any two adjacent ribs is less than the distance, in particular less than 50%, in particular less than 30%, and in particular less than 20% of the distance. By providing the ribs spaced apart from one another along the channel's course, the turbulence can be designed to be particularly effective and / or frictional loss at the unevenness arrangement can be kept to a minimum. In one embodiment, the ribs extend from the outside towards theThe ridges extend towards the channel's central axis with a directional component in the direction of flow. Thus, while the ridges provide a barrier for wastewater, leading to turbulence, their orientation towards the channel's central axis with a component in the direction of flow—that is, their orientation with both a component in the direction of flow and a component perpendicular to the direction of flow—minimizes any deceleration of the wastewater flowing through the channel. Particularly preferably, the unevenness arrangement comprises two sections as described above, each located on opposite sides of the channel's central axis. Each section has ridges spaced apart along the channel's course and extending from the outside towards the channel's central axis with a directional component in the direction of flow, such that the ridges of one section, together with the ridges of the other,In another arrangement section, a V-shaped rib arrangement is formed, which has an interruption created by the intermediate section. Preferably, no ribs are provided in the intermediate section, in contrast to the arrangement sections. In one embodiment, the vortex section extends from the inlet opening over 50% of the channel length of the flow channel. The channel length of the flow channel refers to its length along the channel from the inlet opening to the outlet opening. In another embodiment, the vortex section extends from the outlet opening over 50% of the channel length of the flow channel. In one embodiment, the vortex section is located upstream of the vortex section in the flow direction, so that wastewater entering the flow channel through the inlet opening first passes through the vortex section and only then through the vortex section.The turbulence section and the vortex section can each exhibit the described vortex impulse geometry, for example, the winding inner channel wall, or the described unevenness arrangement, over at least 50% of their extent along the channel. In one embodiment, the clear cross-section within the vortex section has its maximum extent along a first cross-sectional axis and its minimum extent along a second cross-sectional axis. This refers in each case to a clear cross-section at a specific position along the channel. The clear cross-section runs perpendicular to the channel and thus perpendicular to the flow direction. By having the clear cross-section at a specific position, relative to the channel, a maximum extent along the first cross-sectional axis and a minimum extent along the second cross-sectional axis, theSince the maximum extension length is smaller than the maximum extension length, it is ensured that the clear cross-section is not completely rotationally symmetrical with respect to rotation around the channel path or the flow direction. Due to the lack of rotational symmetry, a vortex momentum or rotational momentum can be particularly effectively imposed on wastewater flowing through the channel by the winding course of the channel wall. Preferably, at least within 50% of the extension length of the vortex section along the channel path, the maximum extension length of the clear cross-section is at least 1.5 times, and particularly at least twice, the minimum extension length of the clear cross-section, whereby, of course, the dimensions of the clear cross-section can change along the channel path, and thus the ratio between the maximum and minimum extension lengths can change. Preferably, the ratio betweenThe maximum and minimum extension lengths within the vortex section vary by at least 50%, starting from the largest value of the ratio of maximum to minimum extension length of the clear cross-section within the vortex section. The vortex momentum can be particularly advantageously imposed by varying the cross-section within the vortex section. Preferably, the ratio of maximum to minimum extension length decreases along the flow direction over at least 50% of the vortex section. In one embodiment, the first cross-sectional axis has different angles relative to the channel's central axis along the channel's path. It should be noted that each clear cross-section located at a specific position along the channel's path is assigned a specific first cross-sectional axis that runs through the cross-section in the direction in which it has its maximum extension length. Each cross-sectional axis runsThe first cross-sectional axis is defined as the maximum extent of the clear cross-section passing through its center point. In embodiments where the clear cross-section has the same maximum extent along different directions passing through its center point, the first cross-sectional axis is defined by any one of these directions. By changing the angle of the first cross-sectional axis of the clear cross-section along the channel, particularly by continuously changing it, the vortex momentum or rotational momentum can be particularly advantageously imparted to the wastewater. The angle refers to a rotation about the channel's central axis, i.e., the axis connecting the centers of the clear cross-sections and running along the channel, which, if providedThe channel is, of course, curved. Preferably, the first cross-sectional axes of two clear cross-sections provided within the vortex section and spaced apart from each other along the channel have an angle of at least 30°, in particular at least 45°, and in particular at least 60° to each other about the channel's central axis. More preferably, the first and second cross-sectional axes are perpendicular to each other at least over a section of the vortex section. In one embodiment, the flow channel initially extends downwards in the flow direction, forming a barrier water area, and then curves downwards in the manner of an arc. The flow channel preferably forms an S-shape with at least a section of its channel, wherein, for example, the inlet opening can form the beginning of the S-shape and the arc can form the end of the S-shape. In a preliminary embodimentThe flow channel, forming a barrier water zone, extends downwards from the inlet opening in the direction of flow and then curves downwards in the form of a downward-opening arc. In the preferred embodiment, the flow channel generally has a first downward-running section, to which a second downward-opening section is connected. By first descending and then forming a downward-opening arc, a barrier water zone is created between the beginning of the flow channel, which may be formed, for example, by the receiving or inlet opening, or by an opening in the drainage device into which wastewater enters the drainage device from the discharge opening during normal use of the drainage system, and the upper end of the arc.The water contained within the seal can only escape if water flowing from the outlet opening into the drainage system, entering the drain bowl through the inlet opening, forces the seal water over the upper end of the bend, from where it can flow downwards due to the downward-facing shape of the bend. The outlet opening of the drain bowl is located downstream of the bend and thus also downstream of the seal water area. Preferably, the flow channel has a continuous downward slope from the upper end of the bend to the outlet opening. More preferably, the drainage system, and in particular the drain bowl, has an integrated odor trap. The integrated odor trap is permanently installed so that it cannot be removed from the drainage system or the drain bowl. Preferably, the integrated odor trap has a seal water area. The functionality of such a seal water area is described in theThis is well known in the art and self-evident to those skilled in the art. Due to the known siphon principle, the water seal ensures an odor trap. As explained, the water seal is preferably formed by the flow channel. In one embodiment, the clear cross-section, starting from an upper end of the bend, has a vertical extension that increases along the channel in the direction of flow. This offers the particular advantage that, firstly, the installation height of the drainage device or the required thickness of a supporting layer for installing the drainage system in a floor can be kept low, and secondly, the increasing vertical extension of the clear cross-section towards the upper end of the bend facilitates cleaning of the drainage device or a wastewater pipe connected to the outlet opening. In one embodiment, theThe vertical extent of the clear cross-section at the upper end of the bend has a specific value, and the vertical extent of the clear cross-section increases within the bend, along the channel towards the outlet, to at least twice this specific value. Thus, the vertical extent of the clear cross-section increases even within the bend, i.e., within the bend's extent from its upper end towards the outlet. For example, the downward-facing bend can extend downwards from its upper end with a first arc segment facing the inlet opening against the flow direction, and a second arc segment facing downwards from its upper end in the flow direction towards the outlet. In the second arc segment, the flow direction always has a vertical component.A further section of the flow channel preferably follows the arc section and leads into the outlet opening. Preferably, the flow direction in the second arc section has a continuous angle of at least 20° to the horizontal. Preferably, the vertical extent of the clear cross-section increases from the upper end of the arc to at least twice the determined value of the vertical extent of the clear cross-section at the upper end of the arc, within a vertical extent of the flow channel extending downwards from the upper end of the arc that is 70% of the vertical extent of the second arc section. For example, the increasing vertical extent of the clear cross-section after the upper end of the arc can allow a cleaning tool, such as a cleaning spiral or a cleaning hose, to extend downwards from theThe flow channel can be introduced into the inlet opening, or, in the operating state, from the outlet opening of the drainage channel. Due to the increased vertical extension of the clear cross-section, it can move more freely in the flow direction behind the upper end of the bend, thus facilitating its passage through the outlet opening into a connected wastewater pipe. In one embodiment, the clear cross-section of the flow channel is longer perpendicular to the vertical direction, at least within the bend, than in the vertical direction. This allows for a low installation height while simultaneously ensuring the largest possible clear cross-section. Preferably, the second cross-sectional axis, as described in connection with other embodiments, runs vertically within the bend. Preferably, the ratio of the maximum extension along the first transverse axis and the minimum extension along the bend is modified.The extension length along the second transverse axis, starting from the upper end of the arc in the flow direction towards the outlet opening, is such that it increases from the upper end of the arc in the flow direction, reaching its minimum particularly at the upper end of the arc. In one embodiment, the vortex section extends at least partially within the sealed water area. In another embodiment, the whirlpool section extends at least partially within the arc. Preferably, the whirlpool section extends at least partially along the channel in the flow direction after the upper end of the arc. Implementing the whirlpool section within the arc, particularly after the upper end of the arc, has proven particularly advantageous because a winding course of the channel's inner wall can be achieved in this area of ​​the flow channel in such a way as to create a particularly high...The flow velocity of wastewater through the flow channel and out of its outlet opening can be ensured. In one embodiment, the drain pot is made of plastic. Preferably, the plastic contains a plastic base material, in particular polypropylene, and particles embedded therein, wherein the particles have a particle diameter of less than 500 nm, in particular less than 300 nm, and form at least a portion of a surface of the drain pot designed for conveying wastewater. The surface of the drain pot designed for conveying wastewater is preferably formed by the inner wall of the channel. Preferably, the particles have a particle diameter of less than 200 nm, in particular less than 100 nm, in particular less than 80 nm. Preferably, the particles constitute at least 1%, in particular at least 2%, in particular at least 3%, in particular at least 4%, in particular a maximum of 5%, in particular a maximum of 4%, which is used for...The particles are formed on the surface of the drain pot, which is designed to carry wastewater. Preferably, the particles are evenly distributed in the plastic base material. This ensures particularly reliable protection against abrasion of the particles from the wastewater-carrying surface, even during long-term use. Preferably, the particles constitute at least 1%, particularly at least 2%, particularly 3%, particularly at least 4%, particularly at most 5%, and particularly at most 4% of the plastic from which the drain pot is made. This is expressed as a percentage by volume. The inventors have surprisingly discovered that the use of a plastic base material in which nanoparticles are embedded in the drain pot effectively prevents the deposition of contaminants on the surface of the drain pot. While prior art always assumes that the flow channel of a drain pot is designed to carry wastewater, the inventors have found that the drainage channel of a drain pot is designed to carry wastewater.Since it is necessary to keep cleaning agents and cleaning tools readily accessible, as coarser contaminants must be removed from the flow channel to prevent blockages, and the soiling behavior of the drain pot, the flow channel, or the surface of the flow channel or drain pot designed to carry wastewater is only macroscopically relevant, not microscopically, the invention, with its advantageous embodiment, takes a different approach. The inventors have recognized that a drain pot can be dimensioned particularly small and is therefore suitable for particularly low installation positions by specifically designing the surface along which wastewater flows, making it more difficult for contaminants to accumulate. This makes it easier to keep the drain pot clean overall than is usual in the prior art and thus allows for a novel design. It has proven particularly advantageous that…Pyrogenic silicon dioxide (SiO₂) is used as such particles. In one embodiment, the components of the drainage system are designed to be heat-resistant to wastewater flowing from the drain opening to the outlet opening at 90°C, particularly 100°C, during operation. This refers to the temperature of the wastewater as it enters the drain opening, while the entire drainage system has a temperature of 20°C before the wastewater enters. While it is usually assumed that the components of such a drainage system do not have to withstand wastewater temperatures above 60°C, since typical shower water does not reach such high temperatures, and therefore inexpensive and easily processed plastics are used, the present invention takes a different approach with its advantageous embodiment. The invention is based on the finding that by using conventionally known materials,In particular, plastics that are resistant to high temperatures, i.e., can withstand wastewater temperatures of 90°C, especially 100°C, without damage, especially deformation, allow for new cleaning methods to be used for cleaning the drainage system during operation, for example, rinsing the drainage system with a 100°C warm cleaning agent. While the choice of such heat-resistant materials limits the material selection, and the design of the drainage system components must be adapted to the available materials, and higher manufacturing costs may result from the choice of such heat-resistant materials, the inventors have recognized that this is offset by the significant advantage that the drainage pot can be designed to be particularly space-saving by using new cleaning methods with hot cleaning agents, while still ensuring adequate cleaning capabilities. In one embodimentThe drainage channel is at least partially formed by a single-piece sheet in which the drainage opening is provided and which has a length of at least 20 cm, in particular at least 50 cm, in particular at least 100 cm, in particular at least 120 cm, and a width of less than 50 mm, in particular less than 30 mm, in particular less than 25 mm. Such a sheet can be cut to length to shorten the longitudinal extension, i.e., the extension length of the drainage channel in the longitudinal direction. Preferably, the drainage opening extends over at least 20%, in particular at least 30%, and less than 90%, in particular less than 80%, in particular less than 70% of the longitudinal extension length of the sheet. Preferably, the sheet forms the entire top surface of the drainage channel in the operating state. Preferably, the drainage opening extends over at least 20% and less than 50% of the width of the sheet. In one embodiment, the drainage opening has a length of at least 20 cm.and has a width of at most 8 mm. In one embodiment, the drainage channel has a slope on its upper surface both longitudinally and transversely towards the drainage opening. Preferably, the slope begins at the longitudinal and transverse ends of the drainage channel and / or extends over at least 50% of its flat upper surface. In one embodiment, the flat upper surface extends over an area whose surface area is at least 50%, particularly at least 100%, and particularly at least 200% of the clear cross-section of the drainage opening. Preferably, at least 30% of the upper surface of the drainage opening adjacent to the drainage opening has a three-dimensional slope in both the longitudinal and transverse directions towards the drainage opening. In one embodiment, the drainage system includes a cleaning tool which, in the operating state of the drainage system, extends through the drainage opening into the drainage pot and beyond its outlet opening.The cleaning tool is thus designed to correspond to the other components of the drainage system in such a way that, in the operating state, the cleaning tool can be inserted from the top of the drainage channel into the outlet opening of the drainage channel and through the discharge opening of the drainage channel into the inlet opening of the drain pot, and can be guided through it, so that, starting from the top, the cleaning tool can be guided through the outlet opening of the drainage channel into a wastewater pipe connected to the outlet opening of the drain pot. Preferably, the cleaning tool has a maximum diameter of less than 8 mm, in particular less than 7.9 mm, and in particular less than 7.8 mm, and extends elongated with a cross-section whose length is limited to the maximum diameter, so that it can be guided from the top of the drainage channel into theThe cleaning tool can be inserted into the drain opening and passed through the drain pot. In one embodiment, the drain pot has an internal guide device designed to guide the cleaning tool within the drain pot between the inlet and outlet openings. The guide device can, for example, be formed at least partially by guide ribs extending along the flow direction within the flow channel. Particularly preferably, the guide device is formed at least partially by the unevenness of the turbulence section and / or at least partially by a rounded curvature of the channel's inner wall around an axis of curvature perpendicular to the flow direction and perpendicular to the vertical direction, formed at the lower end of the flow channel. To enable the described properties, the cleaning tool must have a small diameter but simultaneously a considerable length.The guide device effectively guides the cleaning tool within the drain bowl, enabling it to pass through the drain bowl from the drain opening despite the small diameter-to-length ratio and the resulting low stiffness. Preferably, the guide device forms a guide channel within the flow channel, the width of which is greater than the maximum diameter of the cleaning tool but less than three times, and in particular less than twice, the maximum diameter of the cleaning tool. This ensures particularly effective guidance of the cleaning tool. Generally, the internal guide device is formed by the inner wall of the drain bowl, and in particular is integral to the inner wall or its structural design. In one embodiment, the drain system includes aThe present invention presents a first cleaning tool designed as a cleaning spiral with a cleaning attachment. Cleaning spirals are well known in the prior art. The cleaning attachment can, for example, be spiral-shaped or clamp-shaped. Conventional cleaning spirals and cleaning attachments have a maximum diameter of over 10 mm, making them unsuitable for use in drainage systems with small drain openings and low-profile drain bowls. The present invention is based on the finding that by specifically designing a cleaning tool, in particular a cleaning spiral, with dimensions that allow insertion into the drain opening and passage through the drain bowl, and simultaneously designing the drain bowl to provide a sufficiently stable and thus torsion-free passage for the cleaning tool, in particular the cleaning spiral, the following applies:The principle of a cleaning spiral, known from the art, can be particularly advantageously used for the drainage system according to the invention. In one embodiment, the drainage system has a second cleaning tool, which is designed as a cleaning hose with a pressurized water discharge nozzle at its end. Preferably, the second cleaning tool is suitable for conveying rinsing water at a pressure of 10 bar, and the pressurized water discharge nozzle is connected to the cleaning hose in such a way that it is suitable for dispensing rinsing water at a pressure of 10 bar into a wastewater pipe into which it has been inserted. The drainage system can have either a cleaning spiral as a cleaning tool, a cleaning hose as a cleaning tool, or both a cleaning spiral and a cleaning hose, with the latter embodiment providing two alternatively usable cleaning tools. The provision of aA cleaning hose with a pressurized water dispensing nozzle as a cleaning tool is known in the prior art; however, such a cleaning hose as known in the prior art is not compatible with or usable for cleaning drainage systems with small drain openings and low-profile drain pots. The invention, however, is based on the particular insight, analogous to the previous descriptions concerning the cleaning spiral, that by adapting the drain opening, drain pot, and cleaning hose to one another, it is possible to use a single cleaning hose for cleaning the drainage system and a wastewater pipe connected to the drainage system. In one embodiment, the pressurized water dispensing nozzle is designed as a rigid component. The pressurized water dispensing nozzle and / or the cleaning nozzle preferably has a length of at least 20 mm.The cleaning attachment and / or the pressurized water discharge attachment has a length of less than 50 mm, and a width of less than 40 mm, and a width of less than 7 mm, and more specifically at least 7.5 mm, and more specifically at most 8 mm. Preferably, the cleaning attachment and / or the pressurized water discharge attachment has a length of less than 50 mm and a width of less than 8 mm. The width corresponds to the maximum diameter of the pressurized water discharge attachment or cleaning attachment. By appropriately dimensioning the pressurized water discharge attachment or cleaning attachment, the respective attachment can be sufficiently robust and functional, while simultaneously ensuring that the respective attachment can pass through the drain opening and through the flow channel into a wastewater pipe connected to the outlet opening of the drain pot. In one embodiment, the drain system has a mounting block, wherein the drain pot is attached by means of the mounting block.The drain can be mounted on a flat subfloor by fixing the mounting block to the subfloor with its underside resting on it, and fixing the drain pot to the mounting block at a distance from the subfloor. The drain pot and mounting block are thus designed to correspond to each other in such a way that, to achieve an operating state with reference to a flat subfloor, the mounting block is first mounted or fixed to the subfloor, and then the drain pot is fixed to the mounting block and thus relative to the subfloor by means of the mounting block. The drain pot and mounting block are designed to correspond to each other in such a way that, during the subsequent installation on a flat subfloor as described, the drain pot is held at a distance from the subfloor. Thus, the mounting block can provide noise insulation between the drain pot and the subfloor. The mounting block can be made of a suitable material for this purpose.The mounting block may be made, for example, of polystyrene or other sound-insulating material known in the prior art. In particular, the mounting block may, as explained above, comprise a block body and at least one insulating element. Preferably, the mounting block and the drain pot arranged on and fixed to it have a combined vertical height of less than 9 cm. Preferably, the drain pot has a DN40 pipe connection that forms the outlet opening of the drain pot, wherein the mounting block and the drain pot arranged on and fixed to it have a combined vertical height of less than 7 cm. This allows for a particularly advantageous low installation height of the drain pot and thus the implementation of a thin supporting layer on the subfloor. More generally, the drain pot preferably has a water seal, wherein the water seal has a vertical height of 5 cm. The vertical height of theThe water seal area defines the height of the water remaining in the seal area after wastewater has passed through the drain bowl. By implementing a sufficiently large water seal area and minimizing the height of the mounting block and drain bowl, both a reliable odor seal and a low installation height can be ensured. The drainage system preferably features a bridge-like stiffening component that, in the operating state of the drainage system where the drain bowl is arranged and fixed to the mounting block, is fixed relative to the mounting block and bridges an upper end of the drain bowl. The stiffening component, mounting block, and drain bowl are thus designed to correspond to each other, allowing the stiffening component and the drain bowl to be fixed together to the mounting block. Preferably, the mounting block, drain bowl, and stiffening component together have a vertical height ofless than 8 cm. Preferably, the flow channel, as described in the exemplary embodiments presented here, has a curved profile, with the stiffening component arranged above the upper end of the curve and bridging the drain pot. The stiffening component can be made, for example, of a hard plastic or metal. It is generally preferred that the stiffening component be made of a stiffer material than the drain pot. The stiffening component ensures that even with a small thickness of the supporting layer above the drain pot, i.e., with a small distance between the top of the supporting layer and the top of the drain pot, damage to the assembly comprising the drain pot and supporting layer is effectively prevented. In one embodiment, the mounting block has a block body and at least one insulating element arranged on the underside of the block body. The insulating element serves as a sound-insulating element.An insulating element is formed. Preferably, the insulating element has a lower modulus of elasticity than the block body. Thus, the block body ensures a sufficiently robust design of the mounting block, while the insulating element ensures the most sound-insulating connection possible between the mounting block and the subfloor of a room. Preferably, both the insulating element and the block body are made of plastic, with the insulating element being made of a softer plastic than the block body. Preferably, the block body has a vertical extension length that is at least 10 times the vertical extension length of the insulating element. Preferably, the block body is designed as a hollow chamber structure, wherein the hollow chamber structure is formed by a plastic grid frame in which several cavities are enclosed, the volume of which is at least twice the volume of the plastic grid structure.This allows the block body to be both robust and material-efficient. Preferably, the block body has at least one mounting surface on its underside, on which the insulating element is arranged, with a recess for the passage of a fastening element being provided in the mounting surface. Preferably, the block body has at least two mounting surfaces on its underside, with at least one insulating element arranged on each mounting surface and each mounting surface having such a recess for the passage of a fastening element. By providing the passage and a corresponding fastening element, the block body can be used to implement an operating state or to install a drainage system according to the invention in a floor by means of the fastening element(s) against the subfloor.The floor is pressed into the subfloor, with at least one insulating element arranged between the subfloor and the respective installation surface. In one embodiment, the mounting block has a locking device by means of which it can be detachably locked to the drain pot. The locking device can, for example, be designed as a projection or recess, with the drain pot having a corresponding projection or recess. In another embodiment, the mounting block has a locking device by means of which it can be detachably locked to the bridge-like stiffening component. The locking device can accordingly be designed as a projection or recess, and the bridge-like stiffening component can have a corresponding projection or recess. The invention further relates generally to a floor in which a drainage system is installed and is in operation. Preferably, as explained above, the floor has aThe invention comprises a subfloor, a supporting layer, and in particular a floor covering. Preferably, the supporting layer has a vertical thickness of less than 3 cm, in particular less than 2 cm, and in particular less than 1.5 cm in a horizontal section, wherein the bridge-like stiffening element is provided within this horizontal section and extends between the top of the drain bowl and the top of the supporting layer. As a further solution, the invention proposes a pre-assembled drainage device comprising a drainage unit, a construction-phase protective cover, and a sealing sleeve. The drainage unit, the construction-phase protective cover, and the sealing sleeve as components of the pre-assembled drainage device can have features as described for these components as components of embodiments of a drainage system according to the invention. The pre-assembled drainage device differs from the drainage system in that the pre-assembled drainage deviceIn contrast to the drainage system, it does not include a drainage channel. The drainage system thus comprises a pre-assembled drainage device and a drainage channel. The pre-assembled drainage device of the drainage system is designed to correspond to the drainage channel of the drainage system, such that the drainage channel, as explained above with regard to embodiments of a drainage system according to the invention, can be connected with its discharge opening to the inlet opening of the drain pot of the drainage device of the pre-assembled drainage device in a fluid-carrying manner. The pre-assembled drainage device thus serves to prepare for the realization of a drainage system comprising the pre-assembled drainage device in its operating state, i.e., with the drainage channel installed. The pre-assembled drainage device can be arranged in an operating state in which the inlet opening of the drain pot is located below the top surface of a support surface and in which the sealing sleeve is located on the top surface of the support surface.along the top surface of the support surface. As with the embodiments of a drainage system according to the invention described above, the pre-assembled drainage device offers significant advantages compared to known pre-assembled drainage devices, since a flexible, simple, and reliable sealing connection between the top surface of the support surface and the inlet opening of the drain pot is provided by means of the sealing sleeve due to its interaction with the support surface and the drainage device, and in particular due to the design of the construction-phase protective cover. Furthermore, due to the connecting element included in the embodiments, a drainage channel can be connected particularly easily to a pre-assembled drainage device in its operating state, such that the drain opening of the drainage channel is fluid-conducting and connected to the inlet opening of the drain pot of the pre-assembled drainage device. As a further solution, the invention proposes the drainage devicea drainage system according to the invention. The drainage device comprises, as explained above with regard to embodiments of the drainage system, at least one drainage pot, for example, furthermore a connecting device, in particular furthermore a mounting block, and in particular furthermore a stiffening component. Unlike the drainage system, however, the drainage device does not include the drainage channel of the drainage system. The drainage device, however, can, on its own, at least partially overcome at least one disadvantage of generic drainage systems, and it can be combined with a drainage channel. The advantageous design of the drainage device, as described for various advantageous embodiments of the drainage system, can, for example, ensure a high flow velocity of wastewater, easy cleaning, a low installation height for the realization of a thin-layer supporting surface, etc. Those skilled in the art will understand from theExplanation of embodiments of the drainage system according to the invention: The properties of the drainage device and the drainage system itself are evident. As a further solution, the invention proposes a method for installing a drainage system according to the invention in a floor. In a first method step, the drain pot is arranged on a subfloor and fixed to the subfloor, in particular by means of a mounting block. In the first method step, the outlet opening of the drain pot is also connected to a wastewater pipe. In a second method step following the first method step, a supporting layer is applied to the subfloor, which covers at least a horizontal section of the drain pot, in particular completely covering the drain pot outside its inlet opening. In a third method step, the sealing sleeve of the drainage system is arranged on an upper surface of the supporting layer. Preferably, theA sealing collar is integrated into a sealing coating applied to the top surface of the substrate. Preferably, the sealing collar is sealed to the top surface of the substrate, particularly around the inlet opening. In a fourth process step, a floor covering is applied to the substrate, and the drainage channel, with its outlet opening into the inlet opening, is integrated into the floor covering. The inventive method may have further features, which will be apparent to those skilled in the art from descriptions of embodiments of the drainage system according to the invention. As a further solution, the invention proposes a method for cleaning an inventive drainage system. The drainage system is installed in a room floor such that the drainage channel is integrated with its top surface into an adjacent floor covering of the room floor, with the drainage opening adjacent to the top surface of the drainage channel and thus directly exposed toThe cleaning tool is accessible from the top. In the inventive method, without changing the position of the drain channel relative to the floor covering, a cleaning tool is inserted into the drain opening and pushed through the drain pot, so that the cleaning tool exits the outlet opening of the drain pot, in particular into a wastewater pipe connected to the outlet opening of the drain pot. Preferably, the cleaning tool is then rotated about a longitudinal axis, especially when the cleaning tool is designed as a cleaning spiral, and / or pressurized water is then discharged through the cleaning tool into the wastewater pipe, especially when the cleaning tool is designed as a cleaning hose. Preferably, the cleaning tool is guided in the drain pot by a guide device provided in the flow channel of the drain pot while it is pushed through the drain pot. Generally, the drain opening of theThe drainage channel connects directly to an upper surface of the drainage channel that vertically defines its operating state. Water entering the drainage channel during operation is discharged to the drain opening via this upper surface. Preferably, the drainage channel is designed as a grate-free drainage channel, meaning that no grate is provided to obstruct the drain opening. Instead, the drain opening remains completely unobstructed in every possible operating state of the drainage channel and thus always has the same clear cross-section for wastewater discharge. Preferably, the drain opening, with its circumferential rim, opens directly and seamlessly into an upper surface area of ​​the drainage channel, the upper surface area extending seamlessly over the entire longitudinal length of the drainage channel. Accordingly, in a method according to the invention, the drainage channel can be opened without prior removal of a grate.The cleaning tool for cleaning the drainage system is inserted directly into the drain opening. During the cleaning process, the drain channel remains in the same condition as when a user, during normal use (e.g., showering), uses the drain channel while standing on top of the floor covering or the drain channel. Preferably, the drain channel is manufactured from a single piece of sheet metal by forming the metal, particularly by deep drawing. In such an embodiment, the formed sheet metal thus forms both the top of the drain channel and the channel outlet, so that both the drain opening and the discharge opening are provided in this single piece of sheet metal. Preferably, the channel outlet has a vertical extension of at least 10 mm, particularly at least 15 mm, and particularly a maximum of 25 mm.in particular a maximum of 20 mm. The various solutions according to the invention can each have features in their embodiments that are described here in connection with generic devices or methods and that are described here in connection with embodiments of other solutions. The various embodiments according to the invention can be advantageously combined with one another. The invention is explained in more detail below with reference to ten figures and exemplary embodiments. These show: Figure 1: a schematic diagram showing a sectional view of components of an embodiment of a drainage system according to the invention; Figure 2: a schematic diagram showing a perspective view of an embodiment of a drainage system or a floor according to the invention; Figure 3: a schematic diagram showing components of an embodiment ofinventive drainage system; Figure 4: in various schematic diagrams, components of embodiments of a drainage system according to the invention in their arrangements in different operating states relative to one another; Figure 5: in a schematic diagram, a sectional view of components of an embodiment of a drainage system according to the invention; Figure 6: in a schematic diagram, a perspective view of a sealing sleeve of an embodiment of the drainage system according to the invention; Figure 7: in a schematic diagram, a perspective view of components of a further embodiment of the drainage system according to the invention; Figure 8: in various schematic diagrams, views of a drain pan of an embodiment of a drainage system according to the invention; Figure 9: in various schematic diagrams, views of a drain pan of an embodiment of ainventive flow system; Figure 10: in a schematic principle representation, a perspective view of components of an embodiment of an inventive flow system; Figure 11: in various schematic principle representations, different views of components of an embodiment of an inventive flow system; Figure 12: in various schematic principle representations, components of an embodiment of a pre-assembly flow device according to the invention; Figure 13: in various schematic principle representations, components of the pre-assembly flow device according to Figure 12 after carrying out a first process step of an embodiment of a method according to the invention; Figure 14: in various schematic principle representations, components of the pre-assembly flow device according to Figure 12 after carrying out a second process step of an embodiment of a method according to the invention; Figure 15: components of thePre-assembly process device according to Figure 12 when continuing the embodiment of the method according to the invention after completion of the second process step; Figure 16: in an exploded view, components of the construction-time protection cover of the pre-assembly process device according to Figure 12; Figure 17: components of the pre-assembly process device according to Figure 12 in the further course of an embodiment of the method according to the invention after completion of the second process step; Figure 18: components of the pre-assembly process device according to Figure 12 in the further course of an embodiment of the method according to the invention after completion of the second process step; Figure 19: components of the pre-assembly process device according to Figure 12 during the third process step of an embodiment of the method according to the invention; Figure 20: components of the pre-assembly process device of the embodiment according to Figure 12 in the further course of the fourth process step; Figure 21:Components of the pre-assembly process device of the embodiment according to Figure 12 in the further course of the fourth process step. Figure 22: a schematic diagram showing a section of a cleaning tool of an embodiment of a drainage system according to the invention. In Figure 1, components of an embodiment of a drainage system according to the invention are shown in an arrangement relative to each other, as they appear in a typical operating state of the drainage system. For the sake of clarity, not all components of the drainage system are shown in Figure 1. The operating state shown in Figure 1 depicts the components of the drainage system when installed in a floor. In general, the invention further relates to a floor in which a drainage system, as described in relation to embodiments of the invention, is installed. Figure 1 shows a sectional view, the sectional view along aThe drain pot 3 runs vertically in the direction Z and along a transverse direction Y. In the illustration according to Figure 1, the drain pot 3 of the drainage system is arranged on a subfloor 100, with a sound-insulating layer 101 provided between the subfloor 100 and the drain pot 3, which is generally advantageous according to the invention. The drain pot 3 is part of a drainage device, which further comprises a connecting device 2. The connecting device 2 has a connecting section 21, which is designed in the form of a pipe and which is arranged to seal against the inlet opening of the drain pot 3 by means of a connecting unit of the connecting device 2. The connecting unit comprises, generally advantageously according to the invention, a clamp 26 and a sealing ring 25. The connecting device 2 further has a receiving section 23, which, generally advantageously according to the invention, is formed together with the connecting section 21 as a one-piece component, in particular a plastic component.The system is designed as follows: A connecting element 22 of the connecting device 2 is arranged on the receiving section 23. The connecting element 22 has an opening in which, in the operating state of the drainage system, the channel outlet 12 of the drainage channel 1 is arranged. The interaction of the drainage channel 1 and the connecting element 22, as well as the receiving section 23, is explained in more detail below with reference to Figures 3 and 4 for various embodiments. The drainage channel 1 has a horizontal flange 14, with which it rests against the wall 300 of a room in the operating state shown, and a vertical flange 15, with which it rests against a floor covering in a room. The channel outlet 12 of the drainage channel 1 has a discharge opening 13 that leads into the connecting section 21 of the connecting device 2, so that water discharged through the channel outlet 12 via its discharge opening into the connecting section 21 flows into theThe flow channel of the drainage device enters the drain body 3 through the inlet opening. The drain body 3 has an inlet opening and an outlet opening 31, with at least a section of the flow channel of the drainage device extending between the inlet opening and the outlet opening 31. In the operating state shown, a wastewater pipe 600 is connected to the outlet opening 31 of the drain body 3. The drain body 3, the wastewater pipe 600, and the majority of the connecting device 2 are, advantageously according to the invention, embedded in a supporting surface 200, in this case screed, during operation. In the operating state shown in Figure 2, a floor covering 400 is applied to the supporting surface 200, and a wall covering 500 is applied to the wall 300. In this case, tiles are provided as both the floor covering 400 and the wall covering 500. The wall covering 500 or the wall tiles lie vertically above the horizontal flange 14, so that atWater flowing vertically from them is reliably directed onto the top of the drainage channel 1. Accordingly, the floor covering 400, advantageously according to the invention, abuts the vertical flange 15 of the drainage channel 1, so that, if a corresponding slope is provided in the floor covering 400, water can also be reliably discharged from it onto the top of the drainage channel 1. The drain opening 11 of the drainage channel 1 opens into the top of the drainage channel 1 or is directly adjacent to it. Thus, the water entering the drainage channel 1 can flow from the drain opening 11 into the channel outlet 12 and, from its discharge opening 13, into the drain pot 3 and from there into the wastewater pipe 600. Figure 3 shows a sealing sleeve 4, a drain pot 3, and a connecting device 2 of an embodiment of a drainage system according to the invention in a schematic representation in a relative arrangement that they form in aexhibit operating condition. In one embodiment, the connecting device or receiving section 23 has a frame area 24 extending horizontally around the receiving section, with the sealing sleeve 4 being sealedly connected to the frame area 24. An embodiment with such a frame area 24 is shown, for example, in Figure 1, wherein in this embodiment the frame area 24 is only partially formed horizontally as a flange. In the embodiment according to Figure 5, it is formed as a flange all the way around. Figure 3 shows that the connecting section 21 is sealedly connected to the drain pot 3 by means of the clamp 26 of the connecting unit and that the sealing sleeve 4, which is explained in more detail below with reference to Figure 6, is arranged with a horizontal section on the receiving section 23 of the connecting device, in this case with a three-dimensionally pre-formed section in theThe connecting element 21 lies within the trough-shaped receiving section 23 and extends horizontally beyond the connecting device. It is evident to those skilled in the art that, due to the design of the connecting unit, the connecting section 21, and the drain pot 3, the connecting section 21 can also be arranged in a position rotated about a vertical axis relative to the drain pot 3 compared to the relative position shown in Figure 3, in particular a position rotated by 90°, and sealed to it by means of the connecting unit. Furthermore, it can be seen in Figure 3 that the connecting element 22 of the connecting device 2 extends horizontally within the aforementioned horizontal section of the sealing sleeve 4 and within the receiving section 23. The connecting element 22 has an opening 221 into which the channel outlet 12 of the drain channel 1 is inserted during operation. The sealing sleeve 4 is shown in Figure 3.In its operating state, the system is bent at right angles, so that a first section can be arranged sealingly on a support surface 200, as shown in Figure 1, and a second section on a wall 300, as shown in Figure 1, so that water that reaches their upper surface can be guided from the sealing sleeve 4 to the receiving section 23 of the connecting device 2 and from there to the inlet opening of the drain pot 3, which is generally advantageous according to the invention. For illustrative purposes, Figure 4, comprising Figures 4a, 4b, 4c, 4d, and 4e, shows, in a highly simplified manner, the interaction of the drain channel 1, receiving section 23, and connecting element 22 in embodiments of a system according to the invention in various sectional views. The sectional views each extend in the vertical direction Z and in the transverse direction Y. The vertical direction Z and transverse direction Y are shown by way of example in Figure 3. In the embodiments described here,Both the connecting element 22 and its opening 221, as well as the drainage channel 1 and its outlet opening 11, are each designed to be elongated in the longitudinal direction X. Figures 4a, 4b, 4c, and 4d show a first embodiment, and Figure 4d shows a second embodiment. Figures 4a, 4b, 4c, and 4d show that, firstly, the connecting element 22 is arranged on the receiving section 23 with a clearance in the transverse direction Y, so that after the integration of the connecting device 2 and the outlet 3, in particular the entire drainage device, into a support surface 200, the position of the drainage channel 1 can be adjusted along the transverse direction, while its outlet remains inserted into the opening of the connecting element 22. The receiving section 23 is designed in the manner of an upwardly open trough, which has a trough opening in its base connected to the discharge opening of the outlet, thus forming the describedThe receiving opening of the receiving section 23 forms a receiving opening from which water can be discharged into the connecting section 21. The connecting element can be arranged in two positions within the receiving section 23 that differ by 180° about a vertical axis. Figures 4a and 4b show the first of these two positions, and Figures 4c and 4d show the second. In both positions, the connecting element 22 is arranged on the trough-shaped receiving section 23 with play in the transverse direction Y. This allows for a high degree of variability in the orientation of the drainage channel 1 in the transverse direction Y, both by enabling the connecting element 22 to be positioned differently on the receiving section 23 and by allowing it to be moved within the receiving section 23 in these two positions. This ensures that the drainage channel 1 is oriented in the transverse direction Y, even with the drainage pot 3 and connecting section 2 already fixed in a supporting surface 200. The position of theThe connecting element 22, as shown in Figures 4c and 4d, can be accessed from the position shown in Figures 4a and 4b by first removing the connecting element 22 from the receiving section 23, then rotating it, and finally placing it back onto the receiving section 23 or its base. In the embodiment shown in Figure 4e, the connecting element has a pipe section 27 that extends vertically beyond a horizontally surrounding area of ​​the connecting element 22 only on a first vertical side of the connecting element 22. Figure 4e shows that rotating the connecting element 22 180° about a horizontal axis allows for two different positions of the connecting element 22 relative to the receiving section 23, with each position having a different vertical distance.The drain opening 11 of the drain channel 1 can be created relative to the drain device because, in one position, the pipe section 27 projects vertically upwards, and in the other position, it projects vertically downwards. Rotation about the horizontal axis can be carried out as explained above, for example, by first removing the connecting element 22 from the receiving section 23, then rotating it, and then placing it back onto the connecting element. Figure 5 shows a highly simplified schematic diagram of a cross-sectional view through components of an embodiment of a drain system according to the invention. Figure 5 shows a simplified construction protection cover 5, which forms a screed edge 51 that defines a vertical position up to which, in this case, the load-bearing layer 200 has been applied to a subfloor. It can be seen from Figure 5 that the construction protection cover 5 does not extend vertically beyond this vertical position.extends, which is defined by the screed edge 51. In the pre-assembly state shown in Figure 5, the sealing collar 4 is arranged within a storage volume formed jointly by the construction protection cover 5 and the drainage device. Starting from the pre-assembly state shown in Figure 5, the construction protection cover 5 can be detached from the drainage device, after which the sealing collar 4 can be removed from the storage volume and applied without creases to both the top of the supporting surface 200 and the wall 300. In this case, the wall 300 is separated from the supporting surface 200, advantageously according to the invention, by an insulating strip, which also ensures sound insulation of the drainage device relative to the wall 300. In the embodiment shown in Figure 5, the receiving section 23 is flat. In the pre-assembly state shown, the receiving section 23 together with the construction protection cover forms aAn arrangement forming a three-dimensional body section extending vertically downwards from the screed edge 51. This arrangement imprints the shape of the three-dimensional body section into the substrate 200 during its construction. The sealing collar 4 has a section (not shown in Figure 5) that is three-dimensionally formed, in particular pre-formed, in the operating state, as also described in relation to other embodiments, for example with reference to Figure 6, and which has the same shape as the three-dimensional body section. This allows the three-dimensional section to be spread out without creases along the corresponding shape formed by the substrate after the substrate 200 has been constructed, and a flat section of the sealing collar 4 to be laid without creases on the flat upper surface of the substrate. Figure 6 shows a schematic, simplified representation of the principle.A sealing sleeve 4 of an embodiment of a drainage system according to the invention is shown in a perspective view. The sealing sleeve 4 has a three-dimensionally pre-formed section 42 and a planar, foldable section 43 that horizontally surrounds it. The foldable section 43 can be folded, for example, as shown in Figure 3. The three-dimensionally pre-formed section 42 is trough-shaped and thus has a trough bottom 422 and a trough side wall 421 that horizontally surrounds the trough bottom. The trough side wall 421 adjoins the planar section 43 directly. The trough bottom 422 forms a first, horizontally extending region, and the trough side wall 421 a second, vertically extending region of the pre-formed section 42 of the sealing sleeve 4, wherein the first and second extension regions each extend along a horizontal line, namely the firstThe first extension area is horizontally flat, and the second extension area, as a tub side wall 421, extends horizontally around the first extension area, but also vertically according to its design as a tub side wall 421. The second extension area has four horizontal sub-areas, each angled at 90°, which each form a section of the tub side wall 421 and enclose the first extension area. The tub side wall 421 has a vertical extension length of 5 mm, so that the three-dimensionally pre-formed section forms a step with a step height of 5 mm. A sealing sleeve opening 41 is provided in the tub bottom 422 of the three-dimensionally pre-formed area 42, which, in the operating state, horizontally surrounds the receiving opening formed by the receiving section 23. The sealing sleeve 4, with its three-dimensionally pre-formed section 42, is advantageously designed in the operating state to...The sealing element is arranged on the receiving section 23 of the drainage device. The present specifications relating to a three-dimensionally pre-formed section can, according to the invention, generally be advantageously provided in a three-dimensionally shaped section of the sealing sleeve, the three-dimensional shape of which only results when placed on the supporting surface to achieve the operating state. In Figure 7, components of a further embodiment of a drainage system according to the invention are shown in a highly simplified schematic diagram. In the embodiment according to Figure 7, the drainage channel 1 is designed particularly simply. Here, the drainage channel 1 is made of a single piece of sheet metal and is designed in the manner of a pipe, the lower pipe section of which forms the channel outlet 12 of the drainage channel and the clear cross-section opening at the top of the drainage channel 1 forming the drainage opening 11. In the embodiment shown in Figure 7In the illustrated embodiment, a central web 16 is inserted into the drain opening 11 of the drainage channel 1 to realize a particularly advantageous configuration. This web 16 can be removed from the drain opening of the drainage channel 1. The central web 16 can be provided to divide the opening provided by the drain opening 11 on the upper side of the drainage channel 1 into two transverse sections to prevent injuries and / or for purely aesthetic reasons. The channel outlet 12 is inserted into the opening of a connecting element 22. The connecting element 22 is shown in a highly simplified form in Figure 7 and can have further features, for example, as explained here in connection with various embodiments, particularly those similar to the embodiment shown in Figure 3 or Figure 4. In one embodiment, the channel outlet 12 is arranged in the opening of the connecting element 22 such that the drainage channel 1 with its channel outlet 12 is in theThe opening of the connecting element 22 is arranged vertically and is displaceable relative to the connecting element 22, as explained above with regard to various embodiments. In one embodiment, the channel spigot 12 is uniquely fixed in its vertical position relative to the connecting element 22 during operation and is therefore not displaceable when it is arranged in the opening of the connecting element 22. The connecting element 22 further comprises height adjustment means 222, which form an underside of the connecting element 22. The height adjustment means 222 are arranged on a section of the connecting element 22 that forms the opening of the connecting element 22. In Figure 7, the height adjustment means 222 are represented by spring-screw combinations for simplified illustration. Suitable height adjustment means 222 are well known to those skilled in the art. The height adjustment means can particularly advantageously provide that the connecting element 22 rests with its underside onThe drainage device can be placed, for example, on the receiving section of the drainage device, whereby the vertical position of the upper side of the connecting element 22 relative to the drainage device can be adjusted by means of the height adjustment means, while the connecting element 22 rests with its underside on the drainage device. The provision of such height adjustment means is generally advantageous according to the invention. In Figure 8, comprising Figures 8a, 8b, and 8c, a drainage pot 3 of an embodiment of the drainage system according to the invention is shown in simplified schematic representations. Figure 8a shows a side view of the drainage pot 3. The drainage pot 3 has an inlet opening 32 and an outlet opening 31. The inlet opening 32 is connected to the outlet opening 31 by a flow channel of the drainage pot 3, which has a clear cross-section that changes along its channel path. The clear cross-sectionThe flow channel is bounded by an inner wall of the drain pan 3. Starting from the inlet opening 32, the flow channel extends downwards, forming a barrier water zone 33, and then curves downwards in a downward-opening arc, forming a first arc section 34 and a second bottom section 35. The first bottom section 34 adjoins the barrier water zone 33, which is generally advantageous according to the invention. For illustrative purposes, sections A, B, C, and D are shown in Figure 8a. Each section A, B, C, and D corresponds to a section at a specific position of the flow channel, relative to its course. Figures 8b and 8c show sections A, B, C, and D and the respective clear cross-sections of the flow channel. While Figure 8b shows a view of the respective clear cross-section 301, 302, 303, 304 of the respective section A, B, C, D, Figure 8c shows a perspective viewThe illustration shows the entire drain pan 3, starting from its inlet opening 32 and extending to the respective clear cross-sections 301, 302, 303, 304 at the respective section positions A, B, C, and D. Furthermore, Figure 8c shows the drain pan 3 again in a corresponding perspective view. Figure 8 shows that the drain pan 3 has a vortex section within which the inner wall of the flow channel is wound around the channel's central axis. The vortex section extends from section position A at least to section position D. Preferably, the vortex section extends in the flow direction, as shown here, behind the upper end of the bend in the flow channel. Within the vortex section, the clear cross-section changes, with the clear cross-section reaching its maximum at each section position A, B, and C along a cross-sectional axis first corresponding to the respective clear cross-section 301, 302, and 303.The first cross-sectional axis has its maximum extension length and its minimum extension length along the second cross-sectional axis, wherein, starting from the clear cross-section 301 to the clear cross-section 303, i.e., starting from section position A to section position C, the angle of the first cross-sectional axis about the channel's central axis changes, and the ratio between the maximum and minimum extension length decreases. At section position D, the clear cross-section 304 has a substantially circular shape, as it also has at its outlet opening 31. From the combined views of the various illustrations included in Figure 8, it is evident that the channel's inner wall, due to its curved shape, can impart a vortex impulse to wastewater flowing through the channel, which is particularly advantageous for the flow dynamics in the outlet chamber 3. Figure 9, comprising Figures 9a and 9b, shows an outlet chamber of an embodiment of aThe drainage system according to the invention is shown in a semi-transparent representation. While Figure 9a shows a perspective view, Figure 9b shows a vertical view from above. Figure 9 shows that the drain pot 3 has a turbulence section in which it has an unevenness arrangement 36. In this case, the turbulence section is provided in the water seal area 33, since the drain pot 3 has a basic structure comparable to the basic structure of the drain pot according to Figure 8. The drain pot 3 according to Figure 9 can, in particular, have a vortex section, as explained in the embodiment according to Figure 8. The unevenness arrangement 36 of the embodiment according to Figure 9 has two arrangement sections 361, 362, each of which has several webs 360 as unevenness. The arrangement sections 361, 362 are spaced apart from each other perpendicular to the channel path by a smooth intermediate section.The channel's central axis runs through the intermediate section and thus between the two arrangement sections 361 and 362. The webs each extend from the outside towards the channel's central axis with a component in the direction of flow. The unevenness arrangement 36, implemented in the water seal area 33, allows wastewater flowing through the water seal area 33 to be agitated, effectively counteracting the deposition of contaminants on the channel's inner wall. Figure 10 shows a drain pot 3 together with a mounting block 7 and a stiffening component 8 of an embodiment of a drainage system according to the invention, arranged in relation to each other as these components of the drainage system appear in their operating state. The drain pot 3 is mounted on the mounting block 7. The stiffening component 8 is also fixed to the mounting block 7 and extends vertically above the upper end of the downwardly open arc of the drain pot 3. Thus,The stiffening component 8 provides stiffening within exactly one such horizontal section, within which the thickness of the supporting layer 200 is particularly small when realizing a floor as shown in Figure 1. The drainage system according to Figure 10 further advantageously comprises fastening means 71 by means of which the mounting block 7 can be soundproofed and attached to a subfloor. In the operating state, the drain pot 3 is fixed to the mounting block 7 and the mounting block 7 is fixed to the subfloor, with the drain pot 3 being held at a distance from the subfloor by the mounting block 7, so that it is acoustically decoupled from the subfloor due to the mounting block 7 and the soundproof fastening means 71. Figure 11, comprising Figures 11a and 11b, shows components of a further embodiment of the drainage system according to the invention in their relative positions to one another, which they are in in the operating state of theThe drainage system comprises the drain pot 3, the bridge-like stiffening component 8, the mounting block 7, fasteners 71, and the connection unit of the drainage system. The connection unit includes a clamp 26 and a sealing ring 25. The connection unit is sealed at the inlet opening of the drain pot 3. The connecting section of the connection device of the drainage system embodiment is not shown. Figure 11a shows an oblique view from above, and Figure 11b shows an oblique view of a section. The figures show that the drainage system has a mounting block 7 comprising a block body 72 and insulating elements 73, 74. The insulating elements 73, 74 are each arranged on an associated mounting surface 730, 740 of the block body 72, each forming a section of the underside of the block body 72, which is generally advantageous according to the invention.For the sake of clarity, in Figure 10b the upper side of the block body 72, vertically opposite the respective mounting surface, is marked with the respective reference numerals 730 and 740. When the mounting block 7 is installed with its underside on the upper side of a subfloor, the mounting surfaces 730 and 740 can be pressed against the subfloor by means of the fastening means 71, each with a sound-insulating insulating element 73 and 74. Furthermore, it can be seen from Figure 11 that the mounting block 7, in the present embodiment and advantageously in general according to the invention the block body 72, has a locking device 76, which in this case is designed as a projection that interacts with a corresponding projection provided on the drain pot 3, thereby holding the drain pot 3 fixed to the mounting block 7. In addition, the mounting block 7, in the present embodiment and in general according to the invention, hasPreferably, the block body 72 has a locking device 75 by means of which it is detachably locked to the bridge-like stiffening component 8. Figure 12, comprising Figures 12a, 12b, 12c, and 12d, shows a simplified embodiment of a pre-assembly drainage device according to the invention, or some of its components, in various schematic representations. The pre-assembly drainage device can be part of an embodiment of a drainage system according to the invention, which, in addition to the pre-assembly drainage device, has a drainage channel. The pre-assembly drainage device according to Figure 12 has a drainage device with a bottom drain 3 and a connecting device 2, as well as a sealing sleeve (not shown in Figure 12) and a construction-phase protection cover 5. Figures 12a to 12d are explained together below. In Figure 12a, the drain pot 3 is shown together with a stiffening component 8, a block body 72, and an insulating element 73.The pre-assembly drainage device is shown. The drain pot 3 is detachably attached to the block body 72, in this case by means of a snap-fit ​​connection, and the stiffening component 8 is also detachably attached to the block body 72. The assembly comprising drain pot 3, stiffening component 8, and block body 72 can be placed on the insulation element 73 and, by means of the insulation element 73 resting on a subfloor, can be attached to it, so that the insulation element 73, due to its arrangement between the block body 72 and the subfloor, provides insulation between these two. Figure 12b shows the connection device 2 of the drainage device of the pre-assembly drainage device. This has a receiving section 23, which is shown only in Figure 12d, but not in Figure 12b, to which a construction-phase protection cover 5 is attached by means of screws. The receiving section 23 is, advantageously according to the invention, integrally formed with a connecting section 21. By means of aClamp 26 allows the connecting section 21 to be sealed and connected to the inlet opening of the floor drain 3. While Figures 12a and 12b show some of the components of the described embodiment of the pre-assembled drain assembly separately, Figures 12c and 12d show these components in the assembled state. It is evident that the drain pot 3 is held relative to the block body 72 by means of a locking device 75 and that the drain pot 3 has an outlet opening 31 to which a wastewater pipe can be connected. As can be seen in Figure 12d, the drain assembly and the construction-phase protection cover 5 form a pre-assembled arrangement with a three-dimensional body section that extends downwards from a screed edge 51, which is also formed by the pre-assembled arrangement and is explained in more detail below. Since the illustrated embodiment of a pre-assembled drain assembly is designed for installation in the immediate vicinityIn a design intended for installation away from a wall 300, the screed edge 51 and also a downwardly sloping section of the three-dimensional body extending from it are provided only on the two sides of the drainage device that are opposite each other in a specific horizontal direction parallel to the wall 300, as well as on a side connecting these two sides, with which the drainage device points away from the wall 300 perpendicular to the aforementioned specific horizontal direction, but not on the side facing the wall 300. In embodiments intended for installation away from a wall, the screed edge and the downwardly sloping section of the three-dimensional body extending from it can also be provided as a closed, horizontally continuous unit around a vertical axis or the drainage device. Figure 13, comprising Figures 13a and 13b, shows the pre-assembled drainage device according to Figure 12 after a first process step.An embodiment of the method according to the invention has been carried out. During this first process step, the drain pan 3 is arranged on a subfloor 100 and fixed to it, and its outlet opening 31 is connected to a wastewater pipe 600, so that the state shown in Figures 13a and 13b is achieved. In the embodiment according to Figure 13, the pre-assembled drain device is arranged close to the wall, i.e., in the immediate vicinity of a wall 300, whereas in other embodiments an arrangement spaced away from the wall 300 in the middle of a room is also possible. The state according to Figure 13b differs from the state according to Figure 13a only in that insulating elements have been arranged on the wall 300 to ensure decoupling between a load-bearing layer to be installed on the subfloor 100 and the wall 300. In this case, the insulating elements are designed as insulating strips, with a first insulating strip around the load-bearing layer to be applied.The supporting layer 200 is attached to the wall 300 around its perimeter, and a second insulating strip is attached to the wall 300 only in the area of ​​a recess provided in the first insulating strip, in particular laterally outside the recess, overlapping the first insulating strip. The second insulating strip is thinner than the first insulating strip, thus enabling the drainage device to be arranged as close to the wall as possible, by allowing the drainage device to be arranged at the level of the recess or at least partially, in particular at least the receiving section of the connection device of the drainage device, to be arranged within the recess, which is generally advantageous according to the invention. After realizing the state according to Figure 13b, a supporting layer 200 is applied to the subfloor 100, thereby achieving a state as shown in Figure 14, comprising Figures 14a and 14b. For the sake of clarity, the transition between Figure 14a is shown.The wall 300 and the top surface of the supporting layer 200 are schematically simplified with a dashed line. From the combined view of Figures 14a and 14b, it can be seen that the construction protection cover 5 forms a screed edge 51, whose vertical position defines a vertical position for the top surface of the supporting layer 200, where the top surface of the supporting layer abuts the pre-assembly arrangement consisting of the construction protection cover 5 and the drainage device. In Figure 14b, a transition between the top surface of the supporting layer and the aforementioned pre-assembly arrangement is shown with a dashed line for easy illustration. Figure 14b shows that, in the pre-assembled state, the drainage device, together with the construction protection cover, forms an arrangement or pre-assembly arrangement with a three-dimensional body section that extends vertically downwards from the screed edge 51, with the top surface of the supporting layer being...The shape of the three-dimensional body section defines the upper surface of the support layer 200, which, even after removal of the temporary construction cover 5, abuts the drainage device. After removal of the temporary construction cover 5, the upper surface of the support layer 200 extends vertically downwards from the vertical position defined by the screed edge 51 during the pre-assembly phase to the frame area 24 of the receiving section 23 of the drainage device's connection assembly. Figures 15 and 17 to 21 show components of the embodiment of the pre-assembly drainage device according to Figure 12 in the further course of an embodiment of the inventive method after completion of the second process step. In this further course, the third process step is also implemented by arranging the sealing sleeve 4 on an upper surface of the support layer 200 and sealing it against this upper surface.The supporting layer 200 is connected. In Figure 16, for illustrative purposes, the first cover part 510 and the second cover part 520 of the construction-time protection cover 5 of the described embodiment of a pre-assembly drainage device according to the invention are shown separately from each other, so that the further course of the execution of the method according to the invention, as it occurs after the second process step, is more easily understood. Figures 15 to 21 are explained together below. After the supporting layer 200 has been applied to the subfloor 100, as explained with regard to Figure 14, the construction-time protection cover 5, which protected the drainage device, in particular the sealing collar 4, during the application of the supporting layer 200, is then removed from the drainage device. For this purpose, screws (not shown), which were previously inserted through recesses 55 provided in the first cover part 510 and screwed to the drainage device, are loosened, after whichThe construction-phase protection cover 5 is grasped by means of the grip recesses 53 and lifted vertically from the drainage device and the support surface 200. Then, the first cover part 510 and the second cover part 520, which were previously detachably connected by an adhesive strip, are separated from each other. Figure 16 shows that the first cover part 510 has a greater horizontal extent than the second cover part 520 and that the first cover part 510 has recesses 511 into which the second cover part 520 was previously inserted to ensure sufficient stabilization and to provide access to the access opening 52 and to the grip recesses 53 with corresponding projection areas 521. The provision of at least one recess 511 in the first cover part 510, through which an access opening 52 formed by the second cover part 520 is accessible and, in particular, at least one grip recess 53 is also accessible, isAccording to the invention, it is generally advantageous. After the second cover part 520 has been detached from the first cover part 510, which forms the screed edge 51 of the construction-phase protection cover, the second cover part 520 is placed back onto the drainage device, thereby concealing the sealing collar 4 shown in Figure 15, as can be seen in Figure 17. The receiving section 23 with its frame area, which is generally advantageous according to the invention, projects beyond the second cover part 520, whereas the second cover part 520 projects beyond and conceals the sealing collar 4. After achieving the state shown in Figure 17, a sealing coating 810 can then be applied to the top of the supporting layer 200 and the side of the wall 300 facing the drainage device without damaging the sealing collar 4. The second cover part 520 can then be lifted vertically off the drainage device again, and theThe sealing collar 4 can be arranged on the top surface of the support surface 200. Subsequently, as shown in Figure 20, the second cover part 520 can be placed back onto the drainage device, and then, as shown in Figure 21, a further sealing coating 820 can be applied to the top surface of the sealing collar 4, the top surface of the support surface 200, and the side of the wall 300 facing the drainage device, so that it is sealed to the top surface of the support surface and also to the front of the wall 300. Figure 19 further shows that the sealing collar 4, in its operating state in which it is arranged on the top surface of the support surface 200, has a three-dimensionally shaped section 42. Although this three-dimensionally shaped section 42 is not pre-formed into the sealing sleeve 4, its shape results from placing the sealing sleeve 4 on the top surface of the support layer 200 due to theThe three-dimensional shape of the body section, which, as shown in Figure 14b, defines the shape of the upper surface of the support surface in its area adjacent to the drainage device, is characterized by a trough bottom 422. Accordingly, in the operating state, as shown in Figure 19, the three-dimensional section 42 of the sealing sleeve 4 has a trough bottom 422 in which the opening or sealing sleeve opening 41 of the sealing sleeve 4 is provided, and from which a trough side wall 421 extends vertically upwards, resulting in a vertically stepped profile of the three-dimensional section 42 between, on the one hand, the trough bottom 422 and, on the other hand, the flat section 43 present in the operating state. As explained analogously to Figure 3, a connecting element 22 can be placed on the trough bottom 422 and is horizontally displaceable in two mutually perpendicular directions relative to the receiving section 23 of the drainage device. Figure 22 shows a highly simplified schematic representation.The schematic diagram shows a section of a cleaning tool 91 of an embodiment of a drainage system according to the invention. The cleaning tool 91 has a cleaning hose and a pressurized water discharge nozzle 912 at its end. The pressurized water discharge nozzle is designed as a rigid component with a length of less than 40 mm, having a pressurized water discharge opening 911 at its longitudinal end and a chamfer 910 extending from it. The pressurized water discharge nozzle 912 has a width, i.e., a maximum diameter, of less than 8 mm and can be advantageously inserted into a drainage opening 11 of a drainage channel 1 that is only 8 mm wide and from there guided through the flow channel of a drainage pot 3. In the case of a drainage pot according to Figure 9, the unevenness arrangement 36 forms an internal guide for the drainage pot 3, through which a cleaning tool 91 is guided through the flow channel of theThe wastewater can be passed through the drain pot 3 so that it can reach a wastewater pipe connected to the outlet opening 31 with as little interference as possible.

[0002] Ma / pj June 4, 2025 Applicant: TECE GmbH 48282 Emsdetten Narrow Shower Channel Reference List 1 Drain Channel 2 Connection Device 3 Drain Pot 4 Sealing Sleeve 5 Construction Protection Cover 7 Mounting Block 8 Stiffening Component 11 Drain Opening 12 Channel Outlet 13 Discharge Opening 14 Flange 15 Flange 16 Center Web 21 Connection Section 22 Connecting Element 23 Receiving Section 24 Frame Area 25 Sealing Ring 26 Clamp 27 Pipe Section 31 Outlet Opening 32 Inlet Opening 33 Water Barrier Area 34 Bend Section 35 Bend Section 36 Unevenness Arrangement 41 Sealing Sleeve Opening 42 Section 43 Section 51 Screed Edge 52 Access Opening 53 Recessed Handle 55 Recess 71 Fastener 72 Block Body 73 Insulation Element 74 Insulation Element 75 Locking device 76 Locking device 91 Cleaning tool 100 Subfloor 101 Sound insulation layer 200 Load-bearing surface 221 Opening 222 Height adjustment device 300 Wall 301 Clear cross-section 302 Clear cross-section 303 Clear cross-section 304 Clear cross-section 360 Web361 Arrangement section 362 Arrangement section 400 Floor covering 421 Tub side wall 422 Tub bottom 500 Wall covering 510 Cover part 511 Recess 520 Cover part 521 Projection area 600 Wastewater pipe 730 Installation surface 740 Installation surface 810 Sealing coating 820 Sealing coating 910 Phase 911 Pressurized water discharge opening 912 Pressurized water discharge attachment X Longitudinal direction Y Transverse direction Z Vertical direction

Claims

Ma / pj June 4, 2025 Applicant: TECE GmbH 48282 Emsdetten Narrow Shower Channel Patent Claims 1. Drainage system comprising a drainage device with a drain pot (3), a drainage channel (1) and a sealing sleeve (4), wherein the drain pot (3) has an outlet opening (31) for connection to a wastewater pipe (600) and an inlet opening for connection to the drainage channel (1), wherein the drainage channel (1) has a channel outlet (12) which connects a drain opening (11) of the drainage channel (1), which is provided on an upper surface of the drainage channel (1) bounding the drainage channel (1) along a vertical direction (Z), with a discharge opening (13) of the drainage channel (1) provided on its underside, wherein the drainage system can be arranged in an operating state as intended,in which the drain opening (11) is arranged above the upper surface of a support surface (200) and the inlet opening is arranged below the drain opening (11), and in which the sealing sleeve (4) is arranged on the upper surface of the support surface (200) and extends beyond a horizontal extent of the drain channel (1) along the upper surface of the support surface (200), wherein, in the operating state, the drain opening (11) and an upper surface of the sealing sleeve (4) are fluid-carrying connected to the inlet opening.

2. Drainage system according to claim 1, characterized in that the drainage system has a construction-phase protection cover (5) which is detachably connectable to the drainage device, wherein in a, In the pre-assembled state of the drainage system, the construction-phase protection cover (5) is detachably connected to the drainage device by forming a pre-assembly arrangement and, together with the drainage device, encloses a storage volume in which the sealing collar (4) is arranged in the pre-assembled state, wherein the pre-assembly arrangement forms a screed edge (51) whose upper end defines a vertical position, wherein, in particular, the construction-phase protection cover (5) projects vertically beyond the screed edge (51) by less than 5 mm over at least 50%, and in particular at least 70%, of its horizontal extent, and in particular projects vertically beyond the screed edge (51) by less than 1 mm, or extends vertically at most to the screed edge (51). 3.Drainage system according to claim 2, characterized in that the sealing sleeve (4), starting from the pre-assembly state after loosening and removing the temporary construction cover (5), can be placed on the upper surface of a horizontally adjacent support surface (200) extending at the height of the vertical position, while it is arranged below the vertical position on the drainage system, wherein it can be placed on the upper surface of the support surface (200) in a manner that is particularly free of creases. 4.Drainage system according to one of claims 2 or 3, characterized in that the sealing sleeve (4) is connected to the drainage device in a sealing manner exclusively below the vertical position, in particular exclusively in an area spaced vertically apart from the vertical position, in the operating state and in particular in the pre-assembly state, and / or that the sealing sleeve (4) is connected to the drainage device in a sealing manner exclusively in an area spaced horizontally from the screed edge in the pre-assembly state, wherein In particular, the sealing sleeve (4) is exclusively sealed within a connection area with the drainage device, and a limitation of the storage volume formed by the pre-assembly arrangement extends both horizontally outwards and vertically upwards from the connection area. 5.Drainage system according to one of the preceding claims, characterized in that the sealing sleeve (4) has a three-dimensionally formed section (42) in the operating state, which has a vertically stepped profile, wherein in the operating state the three-dimensionally formed section (42) rests against the drainage device, wherein in particular the sealing sleeve (4) is sealedly connected to the drainage device within its three-dimensionally formed section (42) in the operating state, wherein in particular the three-dimensionally formed section (42) of the sealing sleeve (4) has two horizontally successive extension sections, each extending at a different angle to the vertical direction, wherein the sealing sleeve (4) is sealedly connected to the drainage device in both extension sections. 6.Drainage system according to claim 5, characterized in that the three-dimensionally formed section (42) in the operating state is a pre-formed, in particular deep-drawn, section (42) of the sealing sleeve (4), wherein in particular the three-dimensionally pre-formed section (42) is arranged within the storage volume in the pre-assembly state.

7. Drainage system according to one of claims 5 or 6, characterized in that the three-dimensional section (42) is horizontally separated from an internally formed section (42). The operating state is enclosed by a folded section (43), wherein in particular the folded section (43) has a planar extent that is at least twice, and in particular at least three times, the planar extent of the three-dimensionally shaped section, wherein in particular the sealing sleeve (4) has a thickness of less than 1 mm, and in particular less than 0.8 mm, and in particular less than 0.7 mm over its planar extent, and the three-dimensionally shaped section forms a step with a step height of at least 3 mm, and in particular at least 4 mm. 8.Drainage system according to any one of claims 5 to 7, characterized in that the three-dimensional section (42) is designed in a trough-like manner and has a trough bottom and a trough side wall that is horizontally closed around the trough bottom, wherein in particular the three-dimensional section (42) is sealedly connected to the drainage device with its trough bottom.

9. Drainage system according to any one of claims 5 to 8, characterized in that the drainage device together with the construction-phase protection cover (5) forms an arrangement with a three-dimensional body section in the pre-assembly state, which extends vertically downwards from the screed edge (51), wherein in particular the three-dimensional section (42) of the sealing sleeve (4) formed in the operating state follows the shape of the three-dimensional body section, wherein in particular it has the same shape as the three-dimensionally shaped section (42) of the sealing sleeve (4). 10.Drainage system according to one of claims 2 to 9, characterized in that. The construction protection cover (5) has a lockable access opening (52) on its upper side, which, in the pre-assembled state of the drainage system, is fluid-carrying and connected to the inlet opening of the drain pot. 11.Drainage system according to one of claims 2 to 10, characterized in that the construction-phase protection cover (5) consists of several cover parts (510, 520) which are detachably attached to one another, in particular in the pre-assembly state, in particular interlocked and / or bonded to one another by means of an adhesive strip, and / or are manufactured as separate elements independently of one another, wherein in particular a first cover part (510) forms the screed edge (51) and a second cover part (520) has a smaller horizontal extent than the first cover part (510), wherein in particular the second cover part (520) has a larger horizontal extent than the sealing collar (4) arranged in the storage volume in the pre-assembly state and is designed to cover the sealing collar (4) arranged in the storage volume. 12.Drainage system according to claim 11, characterized in that the second cover part (520) has the access opening (52) and, in particular, a pipe stub (54) extending downwards therefrom, wherein, in particular in the pre-assembly state, the sealing sleeve (4) is arranged circumferentially around the pipe stub (54) and the pipe stub (54) extends downwards beyond the sealing sleeve (4).

13. Drainage system according to one of the preceding claims, characterized in that the drainage device has a connecting device (2) for fluid-carrying connection of the discharge opening (13) to the... The drainage system has an inlet opening comprising a receiving section (23) and a connecting section (21) arranged below the receiving section (23), wherein the drainage system has a connecting element (22), in particular designed in the form of a plate, wherein, in the operating state of the drainage system, the connecting element (22) is arranged on the receiving section (23) so as to be horizontally displaceable, in particular rotatable about a vertical axis, and horizontally surrounds the channel outlet (12), and the discharge opening (13) opens into the connecting section (21).

14. Drainage system according to claim 13 and one of claims 2 to 12, characterized in that, in the pre-assembly state, the receiving section (23) together with the construction-phase protection cover (5) encloses the storage volume.

15. Drainage system according to one of claims 13 or 14, characterized in that the connecting element (22) has an opening (221),in which the channel outlet (12) is arranged in the operating state of the drainage system, wherein the channel outlet (12) can be arranged in different vertical positions relative to the connecting element (22) in the opening (221) to realize different operating states, while the connecting element (22) is always arranged in the same vertical position relative to the receiving section (23), wherein in particular the connecting element (22) has a pipe section (27) whose pipe axis extends along the vertical direction (Z), the clear cross-section of which forms the opening of the connecting element (22), wherein in each operating state of the drainage system the channel outlet (12) is arranged in the pipe section (27) and the channel outlet (12) and the pipe section (27) overlap over a different vertical overlap length in different operating states.

16. Drainage system according to any one of claims 13 to 15, characterized in that the receiving section (23) has a frame area (24) that surrounds the channel outlet (12) horizontally in the operating state of the drainage system, wherein the sealing sleeve (4) is sealedly connected to the frame area.

17. Drainage system according to any one of claims 13 to 16, characterized in that the receiving section (23) has a receiving surface in which a receiving opening is provided, wherein the connecting element (22) rests horizontally displaceably on the receiving surface, wherein in particular the receiving section (23) is designed in the manner of a plate with a plate surface forming the receiving surface or is designed in the manner of an upwardly open trough that has a trough bottom (422), wherein the receiving opening is a trough opening in the trough bottom (422) connected to the discharge opening (13). 18.Drainage system according to one of claims 13 to 17, characterized in that the connecting element (22) can be arranged on the receiving section (23) in two positions rotated 180° relative to each other about a vertical axis to realize two different operating states of the drainage system, wherein in particular the connecting element (22) is asymmetrically designed in a direction perpendicular to the vertical direction, and / or that the connecting element (22) can be arranged on the receiving section (23) in two positions rotated 180° relative to each other about a horizontal axis to realize two different operating states of the drainage system, wherein in particular the connecting element (22) is designed according to claim 12 and the pipe section (27) extends further over it on a first vertical side of the connecting element (22).

19. Drainage system according to one of claims 13 to 18, characterized in that the connecting element (22) is elongated in a horizontally extending longitudinal direction, wherein the connecting element (22) is asymmetrically formed in a transverse direction (Y) perpendicular and horizontal to the longitudinal direction (X), wherein in particular the opening (221) is arranged off-center in the transverse direction (Y), and / or that a transverse center of the connecting section (21) is offset from a transverse center of the receiving section (23), wherein in particular the connecting element (22) is arranged with a clearance in the transverse direction (Y) on the receiving section (23) in the operating state. 20.Drainage system according to any one of claims 13 to 19, characterized in that the drainage opening (11) and / or the opening (221) of the connecting element (22) and / or a receiving opening of the receiving section (23) is elongated, in particular having a length of at least 10 cm, in particular at least 15 cm, in particular at least 20 cm, wherein in particular the drainage opening (11) has a width of at most 10 mm, in particular at most 8 mm, and / or the receiving opening has a width of at least 2 cm and in particular less than 5 cm, in particular less than 4 cm.

21. Drainage system according to any one of claims 13 to 20, characterized in that the connecting element (22) is encompassed by the drainage channel (1) and is arranged on the channel outlet (12), in particular is manufactured integrally with the channel outlet (12), or by. the connecting device (2) comprises and is designed as a component separate from the drainage channel (1) and, in particular, the receiving section (23), and has an opening (221) in which the channel outlet (12) is arranged in the operating state of the drainage system.

22. Drainage system according to one of claims 13 to 21, characterized in that the connecting device (2) has a connecting unit corresponding to the inlet opening (32) and to the connecting section (21) for sealingly connecting the connecting section (21) to the drainage pot (3), wherein, in particular, the connecting section (21) is designed in the manner of a pipe with a pipe length and can be cut to length at its lower end to shorten its pipe length, and can be sealedly connected to the drainage pot (3) by the connecting unit at any pipe length adjustable by cutting. 23.Drainage system according to claim 22, characterized in that the connecting unit is configured to correspond to the drain pot (3) and the connecting section (21) such that the connecting unit ensures a sealing connection of the connecting section (21) relative to the inlet opening (32) in various rotational positions of the drain pot (3) relative to the connecting section (21).

24. Drainage system according to any one of the preceding claims, characterized in that the drainage device has a flow channel which, with its channel path, extends in the intended flow direction towards the outlet opening (31) and, with its inner channel wall, defines a clear cross-section for guiding wastewater perpendicular to its channel path, wherein in particular the clear cross-section is defined as follows: The cross-section has a vertical height of less than 30 mm, in particular less than 20 mm, at least in sections, wherein the inner wall of the flow channel forms a vortex momentum geometry for generating a rotational momentum about a channel central axis on wastewater flowing through the flow channel along the inner wall of the channel, at least within a vortex section of the flow channel extending along the channel's course, and / or wherein the inner wall of the channel forms an unevenness arrangement (36) at least within a turbulence section extending along the channel's course.

25. Drainage system according to claim 24, characterized in that the unevenness arrangement (36) is provided at least on a wall section of the inner wall of the channel that bounds the flow channel at its lower end. 26.Drainage system according to claim 24 or 25, characterized in that the unevenness arrangement (36) comprises at least two arrangement sections (361, 362) which are spaced apart from one another in a direction perpendicular to the channel course by a smooth intermediate section, wherein in particular the channel central axis runs between the arrangement sections (361, 362).

27. Drainage system according to one of claims 24 to 26, characterized in that the unevenness arrangement (36) comprises several ribs (360) which are spaced apart from one another along the channel course, wherein in particular the ribs (360) extend from the outside towards the channel central axis with a directional component in the flow direction.

28. Drainage system according to one of claims 24 to 27. characterized in that the vortex section extends from the inlet opening (32) over 50% of the channel length of the flow channel and / or the vortex section extends from the outlet opening (31) over 50% of the channel length of the flow channel and / or wherein the vortex section is located upstream of the vortex section in the flow direction.

29. Drainage system according to one of claims 24 to 28, characterized in that the inner channel wall is wound around the channel's central axis to form the vortex momentum geometry. 30.Drainage system according to one of claims 24 to 29, characterized in that the clear cross-section within the vortex section has its maximum extent along a first cross-sectional axis and its minimum extent along a second cross-sectional axis, wherein the first cross-sectional axis has different angles relative to the channel's central axis along the channel's course and / or the ratio between the maximum and minimum extents changes along the channel's course, in particular decreasing in the flow direction.

31. Drainage system according to one of the preceding claims, characterized in that the drainage device, in particular the drain pot (3), has a permanently installed, integrated odor trap, which in particular comprises a water seal (33), wherein in particular the flow channel initially extends downwards in the flow direction, forming the water seal (33).

32. Drainage system according to claim 31, characterized in that the clear cross-section, starting from an upper end of the arc, has a vertical extension length that increases along the channel in the flow direction, and / or that the clear cross-section, at least within the arc, is longer perpendicular to the vertical direction than in the vertical direction, wherein, in particular, the vertical extension length of the clear cross-section at the upper end of the arc is a specific value and increases, starting from the upper end of the arc, within the arc along the channel towards the outlet opening (31), to at least twice the specified value. 33.Drainage system according to claim 31 or 32 and according to any one of claims 24 to 30, characterized in that the vortex section extends at least partially within the sealed water area (33) and / or that the whirlpool section extends at least partially within the bend, in particular along the channel course in the flow direction towards the upper end of the bend.

34. Drainage system according to any one of the preceding claims, characterized in that the drain pot (3) is made of plastic comprising a plastic base material, in particular polypropylene, and particles embedded therein with a particle diameter of less than 500 nm, in particular less than 300 nm, wherein the particles comprise at least a portion of a [missing information] for conveying wastewater. form the surface of the drain pot (3), wherein in particular the particles are at least predominantly formed as pyrogenic SiO₂, wherein in particular the particles are uniformly distributed in the plastic base material and constitute a maximum of 5% and in particular at least 1%, in particular at least 2% of the plastic from which the drain pot (3) is manufactured.

35. Drainage system according to one of the preceding claims, characterized in that the components of the drainage system are heat-resistant to wastewater flowing from the drain opening (11) to the outlet opening (31) at 90°C, in particular to wastewater flowing at 100°C during operation. 36.Drainage system according to one of the preceding claims, characterized in that the drainage channel (1) is at least partially formed by a one-piece sheet in which the drainage opening (11) is provided and which has a length of at least 20 cm, in particular at least 50 cm, and a width of less than 50 mm, in particular less than 30 mm, in particular less than 25 mm, and can be cut to length to shorten its longitudinal extension, wherein in particular the drainage opening (11) has a length of at least 20 cm and a width of at most 8 mm, wherein the drainage opening (11) extends in particular over less than 50% of the length of the drainage channel (1), wherein in particular the sheet completely forms the top surface of the drainage channel (1) and in particular the drainage channel (1) has a slope on its top surface both in the longitudinal direction (X) and in the transverse direction (Y) towards the drainage opening. 37.Drainage system according to one of the preceding claims, characterized in that the drainage system comprises a cleaning tool (91) which is enclosed by. the drain opening (11) can be inserted into the drain pot (3) and through it up to and beyond its outlet opening (31), wherein in particular the drain pot (3) has an internal guide device designed to guide the cleaning tool (91) within the drain pot (3) between the inlet opening (32) and the outlet opening (31). 38.Drainage system according to claim 37, characterized in that the drainage system comprises a first cleaning tool (91) designed as a cleaning spiral with a cleaning attachment, and a second cleaning tool (91) designed as a cleaning hose with a pressurized water discharge attachment (912) provided at its end, wherein in particular the pressurized water discharge attachment (912) and / or the cleaning attachment is designed as a rigid component and has a length of at least 20 mm, in particular at least 30 mm, in particular at most 50 mm, in particular at most 40 mm, and a width of at least 7 mm, in particular at least 7.5 mm, in particular at most 8 mm. 39.Drainage system according to one of the preceding claims, characterized in that the drainage system comprises a mounting block (7), wherein the drain pot (3) can be mounted on a flat subfloor (100) by means of the mounting block (7), in that the mounting block (7) is fixed to the subfloor (100) with its underside resting on the subfloor (100) and the drain pot (3) is fixed on the mounting block (7) at a distance from the subfloor (100), wherein in particular the mounting block (7) and the drain pot (3) arranged on and fixed to it together have a vertical height of less than 9 cm, wherein in particular the drain pot (3) has a DN40 pipe connection at its outlet opening (31) and the mounting block (7) and the drain pot arranged on and fixed to it.

40. Drainage system according to claim 39, characterized in that the mounting block (7) has a block body (72) and at least one insulating element (73, 74) arranged on the underside of the block body (72), wherein, in particular, the block body has at least one mounting surface (730, 740) on its underside, on which the insulating element (73, 74) is arranged and in which a recess for the passage of a fastening means (71) is provided.

41. Drainage system according to one of claims 39 or 40, characterized in that the mounting block (7) has a locking device (76) by means of which it can be detachably locked to the drain pot (3). 42.Drainage system according to one of claims 39 to 41, characterized in that the drainage system has a bridge-like stiffening component (8) which, in the operating state of the drainage system in which the drain pot (3) is arranged on and fixed to the mounting block (7), is fixed relative to the mounting block (7) and bridges an upper end of the drain pot (3), wherein, in particular, the mounting block (7) has a locking device (75) by means of which it can be detachably locked to the bridge-like stiffening component (8).

43. Drainage device of a drainage system according to one of the preceding claims.

44. Pre-assembly drainage device comprising a drainage device, a construction-phase protection cover (5), and a sealing sleeve (4) of a drainage system according to one of claims 2 to 42.

45. Method for installing a drainage system according to one of the preceding claims in a floor, wherein in a first method step the drainage pot (3) is arranged on a subfloor (100) and fixed thereto and its outlet opening (31) is connected to a wastewater pipe, wherein in a second method step a supporting layer (200) is applied to the subfloor (100) which covers at least a horizontal section of the drainage pot (3), wherein in a third method step the sealing collar (4) is arranged on an upper surface of the supporting layer (200), wherein in a fourth method step a floor covering is arranged on the supporting layer (200) and the drainage channel (1) with its channel outlet (12) opening into the inlet opening (32) is integrated into the floor covering. 46.Method for cleaning a drainage system according to one of the preceding claims, which is installed in a room floor in such a way that the drainage channel (1) is integrated with its upper side into a floor covering of the room floor adjacent to it and the drainage opening (11) is adjacent to its upper side, wherein, without changing a position of the drainage channel (1) relative to the floor covering, a cleaning tool (91) is inserted into the drainage opening (11) and pushed through the drainage pot (3) so that it exits from its outlet opening (31).

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