Device for supplying greywater from a greywater producer to a greywater consumer and system for greywater use

Abstract

Device (10) for supplying grey water (160) from a grey water producer (12) to a grey water consumer (500; 702), wherein the grey water producer (12) has a grey water outlet (14), wherein the device (10) has an inlet (16) which can be connected to the grey water outlet (14) and an outlet (18), characterized in that the device (10) also has, in addition to the outlet (18), a discharge connection (20) for discharging grey water (160) to the grey water consumer (500; 702).

Description

The present invention relates to a device for supplying grey water from a grey water generator to a grey water collector according to the preamble of claim 1 and to a system for grey water use.Numerous sanitary elements are known which guide a flushing liquid, preferably mostly flushing water, to its operation. These include, for example, water closets (WC), bidets, urinals and the like.It is desirable that grey water is also used in the future for example for such rinsing processes in order to save drinking water. However, suitable devices are to be provided for this purpose, with which the grey water can be supplied to the grey water collector from a grey water generator, with which the grey water can be stored and with which, if appropriate, a supply of drinking water to the grey water is made possible without impairing the drinking water safety.The present invention relates to grey water supply, the object of the present invention being to provide a solution which brings improvements to it. The feed line should preferably be simple in construction and space-saving. In particular, the device should be capable of being integrated easily and without additional attachments into known grey water generators, such as wash basins, bathtubs and the like. In addition, it would be desirable if the device also simultaneously enables the gray water to be treated.This object is achieved with the device according to the invention as claimed in claim 1 and the system according to the invention as claimed in claim 13.It was recognized by the inventor that this object can be achieved in a surprising manner in a particularly simple manner if the device has an inlet and an outlet as well as a branch for the grey water, because it can then be integrated particularly easily into existing grey water generators.The device according to the invention for supplying grey water from a grey water generator to a grey water collector, wherein the grey water generator has a grey water outlet, wherein the device has an inflow, which can be connected to the grey water outlet, and an outflow, is characterized in that the device also has, in addition to the outflow, an outflow connection for the outflow of grey water to the grey water collector."Outlet connection" does not mean within the scope of the present invention that a hose or the like must be connectable thereto; it can also simply be a free outlet or the like. The discharge connection thus ensures overall only the possibility of a grey water collector being connected in fluid fashion to the device according to the invention, wherein this connection can be effected directly or indirectly (for example with the interposition of a grey water storage device)."Grey water" in the context of the present invention is a fecal-free, low-soiling wastewater from baths, showers or washing machines, which can serve as service water by preparing a second use. Kitchen waste water is not part of grey water because of the higher load with fats and food waste."Fresh water" is, within the scope of the present invention, an unused, uncontaminated water, including drinking water."Drinking water" in the context of the present invention is a fresh water with such a high purity level that, according to the officially defined quality requirements, it is classified as suitable for human use, in particular for drinking and food preparation.Liquids are classified into five different categories according to the danger types they originate from according to EN 1717 or DIN 1988-4:Category 1 denotes a liquid which does not pose any health hazard and which is without impairment in terms of odor, taste or color. This includes, for example, cold drinking water.Category 2 denotes a liquid from which there is likewise no risk to health, but which has an adverse effect on the odor, taste, color or temperature. These include, for example, coffee, tea, drinking water which is colored by rust and warm drinking water.Category 2 denotes a liquid from which health hazards arise from less toxic substances. These include glycol, sodium hydroxide solution, heating water without addition and copper sulfate solution.Category 4 denotes a liquid from which health hazards arise from toxic, very toxic, cancer-causing, mutagenic or radioactive substances associated with the risk of life. These include chemicals, paints, chemical cleaning, electroplating baths, insecticides.Category 5 denotes a fluid from which health hazards arise from diseases which can be transmitted by microbial or viral pathogens if there is a risk of life. These include hepatitis viruses, salmonella and fecal contaminated waterDrinking water coming from the fresh water connection is obviously a category 1 liquid.Drinking water which is stored open and without special provisions is classified as Category 3 liquid for safety reasons. This also includes the fresh water stored in the fresh water container.For safety reasons, untreated grey water is classified as a Category 5 liquid. This also includes the grey water stored in the grey water container.In an advantageous development, it is provided that the device can be fastened in an opening of the grey water generator. It is then possible to integrate it particularly well into an existing grey water generator.In an advantageous further development, it is provided that the grey water generator is a wash basin, a shower, a bathtub, a sink, a washing machine, a tumble dryer or the like. Such grey water generators are available in great numbers in real-life with households, industry, industrial trade and the like, so that grey water which arises there can be used.In an advantageous development, it is provided that the grey water collector is a flushing tank, preferably for a toilet, a urinal or the like. As a result, the grey water produced can be temporarily stored until a removal is desired, as a result of which a particularly large amount of drinking water can be saved.In an advantageous development, it is provided that means for the physical treatment of the grey water consist, wherein the means for the physical treatment preferably have a filter for the grey water. This results in physical treatment of the grey water, which results in less severe burden on sewerage and sewage treatment plants. In addition, a filter also makes it possible to collect objects which only pass unintentionally into the device.In an advantageous development, it is provided that the means for the physical treatment of the grey water comprise a first filter for filtering macroscopic contaminations, such as hairs, rings, ear rings or the like, wherein the first filter preferably has a filter width in the range of 1 mm to 10 mm, preferably in the range of 2 mm to 7 mm, in particular in the range of 3 mm to 5 mm. The first filter is preferably arranged in the axial direction with respect to the longitudinal axis of the device. As a result, objects unintentionally entering the device and such objects which would impair the function of the device can be kept away, wherein the device can nevertheless be designed very compactly.In an advantageous development, it is provided that the means for the physical treatment of the grey water comprise a second filter for filtering microscopic contaminants, wherein the second filter preferably has a filter width in the range of 25 μm to 2 mm, preferably in the range of 50 μm to 1 mm, in particular in the range of 100 μm to 500 μm. As a result, grey water collectors receive grey water which is less laden with suspended matter, so that fewer sludges can form in the grey water collectors and the turbidity is significantly reduced. Preferably, the filter is arranged to flow radially inwardly with respect to the longitudinal axis of the device. Then, the filter on its outer side can be easily cleaned with a ski without having to remove it.In an advantageous development, it is provided that at least one filter of the means for the physical treatment of the grey water has a fabric, preferably a metal, a plastic fabric, a microporous structure or a membrane. As a result, the filter is particularly effective.In an advantageous development, it is provided that at least one filter of the means for physical treatment of the grey water has an overflow which preferably communicates with the outflow. This always results in a reliable discharge of grey water through the device, so that a back-up into the grey water generator or flooding is avoided.In an advantageous development, it is provided that at least one filter of the means for physical treatment of the grey water has an outflow which preferably opens into the outflow connection. As a result, the device is of particularly compact construction.In an advantageous development, it is provided that the means for the physical treatment of the grey water are designed to be at least partially removable from the device. As a result, these means can be cleaned more easily.In an advantageous development, it is provided that the means for the physical treatment of the grey water comprise a dead space. As a result, for example, objects and particles to be filtered off are transferred into a region of the device which does not interfere with the function of the means for physical treatment, so that the means for physical treatment have to be cleaned less frequently.This dead space is preferably arranged a) in the flow direction of the grey water between the inflow and the filter and / or b) is designed as a vertically extending dead space and / or c) is designed as an annular space and / or e) is designed to be openable, wherein in particular a side wall of the dead space is designed to be removable, and / or f) is U- or V-shaped.As a result, the dead space is particularly effective and can be easily cleaned.In an advantageous development, it is provided that the grey water outlet comprises means for the chemical and / or biological treatment of the grey water, wherein the means preferably have a receiving region for a chemical and / or biologically acting treatment substance. As a result, the grey water can also be easily pretreated from a chemical or biological point of view before it is passed to a grey water collector. As a result, the grey water collector has to be cleaned less frequently. Moreover, the grey water can be stored for a longer time.In an advantageous development, it is provided that components of the means for chemical and / or biological treatment of the grey water are arranged in the means for physical treatment of the grey water, preferably a filter, wherein the components are designed in particular to be removable from the means for physical treatment of the grey water. The device is then of particularly compact construction.In an advantageous development, it is provided that components of the means for chemical and / or biological treatment of the grey water are arranged downstream of the filter in the flow direction of the grey water from the inflow to the filter outflow. Then, the chemical and / or biological treatment of the grey water is particularly effective.In an advantageous development, it is provided that the means for the chemical and / or biological treatment of the grey water comprise a container through which the grey water can flow, which container is preferably designed to be openable.The container is preferably designed as a cage, because it can be passed through particularly well. Alternatively or additionally, the container can contain means for guiding the flow, for example in the form of at least one longitudinal rib and / or guide surface, each running parallel, obliquely or curved with respect to the longitudinal axis, or in the form of at least one helix, which guide the liquid in a targeted manner to the treatment substance and bring it into contact or mix it with the latter.If the receiving region is designed to be openable and consequently also closable, the processing substance used is held in the device in a particularly secure manner.Preferably, the means for the chemical and / or biological treatment of the grey water have a closure cap which can be plugged onto the container. The closure cap is preferably elastic. In particular, there is a conicity on the container and / or closure cap, so that a positive closure takes place between container and closure cap.In an advantageous development, it is provided that the means for the chemical and / or biological treatment of the grey water are designed to be at least partially removable from the device. They can then be easily cleaned and / or replenished.In an advantageous development, it is provided that the treatment substance is adapted to act in the sense of at least one of the properties from the group comprising: antimicrobial activity (biofilm formation avoided / reduced), degreasing, fat binding, defoaming, decalcification (lime formation avoided / reduced), odor reduction and deodorizing. Then, the chemical and / or biological treatment is particularly effective and the treated grey water can be used very well further without polluting the grey water collectors.In an advantageous development, it is provided that the discharge connection extends with respect to a longitudinal axis over an azimuthal range of at least 30°, preferably at least 60°, preferably at least 90°, in particular at least 180°. Then, the grey water can be very controlled in normal operation and discharged in a laminar manner from the discharge connection, whereby foaming is effectively prevented. At the same time, however, there is still sufficient installation space to discharge grey water through the overflow channels in the plugging mode.In an advantageous development, it is provided that the discharge connection has a discharge surface which preferably runs inclined in the flow direction of the grey water, wherein the inclination is preferably in the range 1° to 30°, further preferably in the range 5° to 20°, in particular in the range 8° to 15°. A controlled and laminar discharge of the grey water is then made possible.In an advantageous development, it is provided that the device has a housing which preferably has at least one element from the group comprising: outlet housing, overflow housing, filter housing, treatment housing, outlet funnel and valve housing. This construction of the device has proved particularly successful and at the same time enables a very compact design of the device. If at least some of these elements are detachable from one another, the device can be installed, serviced and cleaned particularly well. In particular, the housing is designed to be screwed to the grey water generator, which facilitates integration into existing systems.In an advantageous development, it is provided that the device provides a first path which conducts grey water from the inflow to the outflow, and a second path which conducts grey water from the inflow to the outflow connection, wherein the paths are preferably designed to be switchable, in particular manually switchable. As a result, the device can be used particularly well in daily operation.In an advantageous development, it is provided that the device has an openable closure for the first path. The closure is preferablyg) is embodied in a sealed manner and / orh) are removable and / ori) are arranged on the means for physical processing and / orj) are arranged on the means for chemical and / or biological treatment. As a result, the device is particularly effective.In an advantageous development, it is provided that the second path comprises an overflow of the device, wherein the overflow preferably at least partially bypasses the means for the physical treatment of the grey water, wherein the overflow is connected in particular to the outflow. As a result, the function of the device is maintained even in the event of a blockage of the means for physical treatment of the grey water, without a back pressure to the grey water generator and / or flooding having to be feared.In an advantageous development, it is provided that a vertically extending barrier exists between the first path and the second path, wherein an upper edge of the barrier is preferably configured to be concealed within the scope of the first path, wherein the first path in particular has a channel section which extends vertically to below the upper edge. This particularly effectively prevents unintentional transfer of grey water into the discharge connection.In an advantageous development, it is provided that the first path is formed freely when the closure is removed. As a result, the changeover between the discharge of the grey water to the grey water collector and the transfer of the grey water to the outflow can take place very quickly.In an advantageous development, it is provided that the first path is freely formed when the means for the physical treatment of the grey water and / or the means for the chemical and / or biological treatment are at least partially removed from the device. This results in an automatic changeover from the discharge of the grey water to the grey water collector to the transfer of the grey water to the drain, if for example a cleaning of the means for the physical treatment of the grey water and / or the means for the chemical and / or biological treatment takes place, whereby the impurities produced during the cleaning are automatically transferred into the drain.In an advantageous development, it is provided that the second path is freely formed when the first path is closed. This always provides a clear choice between the discharge of the grey water to the grey water collector and the transfer of the grey water to the drain.In an advantageous development, it is provided that the device is designed to guide grey water from the inflow to the outflow when the first path is closed and the means for the physical treatment of the grey water are at least partially blocked and / or when the first path is closed and the means for chemical and / or biological treatment are at least partially blocked. Then, a back-up to the grey water generator and / or a flooding in the event of a blockage is effectively prevented.A method according to the invention for supplying grey water from a grey water generator to a grey water collector, wherein the grey water generator has a grey water outlet, wherein the device has an inlet which is connected to the grey water outlet and an outlet, would be characterized in that the grey water for the grey water collector is taken from the device via an outlet connection which is in addition to the outlet.In an advantageous development, it would be provided that the device according to the invention is used.Independent protection is claimed for the system according to the invention for grey water use, which comprises the device according to the invention for supplying grey water from a grey water generator to a grey water collector, wherein there is additionally a grey water generator and / or a grey water collector.In an advantageous development, the system also comprises the device according to the invention for storing grey water in a grey water container. With this system according to the invention, the grey water produced in the grey water generator can be stored excellently in a grey water container. With regard to the configuration of the gray water storage device in a gray water container and the method for storing gray water in a gray water container, reference is made to the utility model application "gray water storage device" filed by the applicant on the same day, the entire contents of which are incorporated by reference in their entirety.In an advantageous development, the system also comprises the device according to the invention for supplying a grey water container with fresh water from a fresh water connection. With this system according to the invention, fresh water can then be supplied to the grey water container in the event that there is not sufficient grey water available or if a sufficient amount of grey water has already been filled into the grey water container. With regard to the configuration of the device for supplying a grey water container with fresh water from a fresh water connection and of the method for supplying a grey water container with fresh water from a fresh water connection, reference is made to the utility model application "device for supplying a grey water container with fresh water from a fresh water connection" filed on the same day by the applicant, the entire content of which is incorporated by reference in its entirety.In the indicated value ranges, not only the indicated individual values and limit values, but also all intermediate values lying between indicated values are conceivable and relevant. This means that all values lying between the individual values, minimum and maximum values indicated in each case can likewise be present and are essential to the invention. Any intermediate value between the individual values, minimum and maximum values of the respective interval indicated in each case is thus disclosed as being essential to the invention, in particular in respective stages of 0.1 units (for example 0.1 mm, 0.1 μm). Such an intermediate value may not be within a specified interval, and may be between the boundary of one interval and the boundary of another interval, the boundary of one interval and one singular value, and two singular values as long as the values each refer to the same element.The claims now filed with the application and also the claims later filed are not prejudicative of achieving further protection.If it is found here, upon closer examination, in particular also of the relevant prior art, that one or the other feature is favourable for the object of the invention, but is not of decisive importance, then a formulation is naturally already desired which no longer has such a feature, in particular in the main claim. Such a sub-combination is thus also covered by the disclosure of this application.The relations recited in the dependent claims indicate the further embodiment of the subject matter of the main claim by the features of the respective dependent claim. However, these should not be understood as a omission of achieving independent, objective protection for the features of the dependent claims which refer back.It should be further noted that the embodiments and variants of the invention described in the various embodiments and shown in the figures can be combined with one another as desired. Individual or several features can be exchanged with one another as desired. These combinations of features are also disclosed.Features which have been disclosed only in the description or even individual features from claims which comprise a plurality of features can be adopted at any time as being of importance essential to the invention for delimiting from the prior art in the independent claim / claims, and indeed even if such features have been mentioned in connection with other features or achieve particularly favorable results in connection with other features.Thus, all features shown in the general description of the invention, the description of the exemplary embodiments, the following claims and in the figures can be essential to the invention both individually and in any combination with one another. These features or combinations of features can each be a separate invention, the use of which is expressly reserved. In this case, individual features from the description of an exemplary embodiment do not necessarily have to be combined with one or more or all other features specified in the description of this exemplary embodiment; in this respect, each sub-combination is expressly also disclosed. In addition, physical features of an apparatus, a device or a system can be used in a formulated manner as method features and method features can be used in a formulated manner as physical features of an apparatus, a device or a system. Such reformulation is thus automatically disclosed.The features and further advantages of the present invention will become apparent below on the basis of the description of a preferred exemplary embodiment in conjunction with the figures. Purely schematically show: FIG. 1 shows the device according to the invention for supplying grey water from a grey water generator to a grey water collector in a special sectional view for a preferred embodiment, FIG. 2 shows the device according to the invention for supplying grey water according to FIG. 1 in a perspective sectional view, FIG. 3 shows the device for supplying grey water according to FIG. 1 in a first perspective partial sectional view, FIG. 4 ashows the device for supplying grey water according to FIG. 1 in a first perspective detailed view in a first orientation, FIG. 4 bshows the device for supplying grey water according to FIG. 1 in a first perspective detailed view in a second orientation, FIG. 5 shows the device for supplying grey water according to FIG. 1 in a second perspective detailed view, FIG. 6 shows the device for supplying grey water according to FIG. 1 in a third perspective detailed view, FIG. 7 shows the device for supplying grey water according to FIG. 1 in a fourth perspective detailed view, FIG. 8 shows the device for supplying grey water according to FIG. 1 in a fifth perspective detailed view, FIG. 9 shows the device for supplying grey water according to FIG. 1 corresponding to FIG. 7 in section, FIG. 10 shows the device for supplying grey water according to FIG. 1 in a sixth perspective detailed view, FIG. 11 shows the device for supplying grey water according to FIG. 1 in a seventh perspective detailed view, FIG. 12 shows the device for supplying grey water according to FIG. 1 in a perspective partial sectional view with a first functional illustration, FIG. 13 shows the device for supplying grey water according to FIG. 1 in a perspective partial sectional view with a second functional illustration, FIG. 14 shows the device for supplying grey water according to FIG. 1 in a perspective partial sectional view with a first detailed view of the second functional illustration, FIG. 15 shows the device for supplying grey water according to FIG. 1 in a perspective partial sectional view with a second detailed view of the second functional illustration, FIG. 16 shows the device for supplying grey water according to FIG. 1 in a perspective partial sectional view with a third functional illustration, FIG. 17 shows the device for supplying grey water according to FIG. 1 in a perspective partial sectional view with a fourth functional illustration, FIG. 18a is an overall view of the system according to the invention for gray water use with the device according to the invention for gray water storage, the device according to the invention for gray water supply and the device according to the invention for fresh water supply, FIG. 18 bshows a partially sectioned overall view of the system according to the invention for gray water use according to FIG. 18 a, FIG. 19 is an exploded view of the gray water use system of FIG. 18a; and FIG. 20 shows the interaction of the device according to the invention for gray water supply according to FIG. 1 with the device for gray water storage within the scope of the system according to the invention for gray water use according to FIG. 18 a.FIGS. 1 to 17 and 18 bto 20 show the device 10 according to the invention for supplying grey water from a grey water generator to a grey water collector ("device for supplying grey water"), which is used, for example, within the scope of the system 700 according to the invention for grey water use (cf. FIGS. 18 ato 19 ) in cooperation with the device 500 according to the invention for storing grey water ("device for storing grey water"-cf. FIGS. 18 ato 20 ), according to a preferred embodiment. The gray water supply device 10 has an approximately cylindrical shape, i.e. its cross section in the horizontal direction H is approximately round.It can be seen that the device for supplying grey water is a drain 10 which can be fastened, for example, to a wash basin 12, bathtub or the like as a grey water generator which has a grey water drain 14.The device 10 for supplying grey water itself has an inflow 16, an outflow 18 and discharge connection 20, which are arranged on a housing 22.In this case, within the scope of the housing 22, there are a discharge housing 24 with a discharge funnel 26, a fastening flange 28, an overflow housing 30, a filter housing 32, a treatment housing 34 and a valve housing 36, which is part of the discharge housing 24.It should be noted that, for reasons of better clarity, the fastening flange 28 is not shown in each case in FIGS. 2-4, but is shown in FIGS. 12-17. More specifically, FIGS. 2 and 4 show overall views of the gray water supply device 10, FIG. 3 shows a view of the gray water supply device 10 without the treatment housing 34, FIG. 5 shows the drain housing 24, FIG. 6 shows the overflow housing 30, FIG. 7-9 shows the filter housing 32, and FIG. 10 shows the treatment housing 34.The fastening flange 28 can be screwed into the outlet housing 24 via a screw connection 38. The outlet housing 24 has an upper circumferential collar 40 in the vertical direction V, on which an annular elastic sealing element 42 is arranged, which provides the fluid-tight seal between the outlet housing 24 and the grey water generator 12. For further sealing, a corresponding sealing ring could also be present between the fastening flange 28 and the grey water generator 12 (not shown).The outlet housing 24 has an annular chamber 44 which is closed vertically downwards and opens downwards into a respective overflow channel 46 on two sides opposite with respect to the longitudinal axis L, wherein the two overflow channels 46 open into the outlet funnel 26 next to the valve housing 36. (For clarity, an overflow channel 46 is shown on the right in FIG. 1 and the annular space 44 on the left, wherein the middle line is a virtual section line.)At the locations where no overflow channel 46 leads from the annular space 44, the discharge connection 20 is located below the annular space 44, which correspondingly has a ring segment-shaped discharge surface 48, from which grey water can be discharged to a grey water collector, such as a toilet 702, a grey water tank 500, or the like. This discharge surface 48 ends in a collar 49 which extends axially and almost perpendicularly with respect to the longitudinal axis L.There are thus two overflow channels 46 and two discharge connections 20 which are arranged symmetrically about the longitudinal axis L and each extend by an azimuthal range of 90° with respect to the longitudinal axis L.Alternatively, for example, for a front wall installation, it could also be provided that there is only one overflow channel 46 and one discharge connection 20, which are arranged offset by 180° and each comprise an azimuthal angle range of 180°. The sectional plane between overflow channel 46 and discharge connection 20 would then be oriented parallel to a front wall.The fastening flange 28 has an inner projection 50, on which a collar 52 of the overflow housing 30 running circumferentially on the edge rests. The overflow housing 30 also has at its lower portion a groove 54 in which an elastic sealing ring 56 is arranged. Together with an inner wall 58 of the outlet housing 24, a seal is thus effected between the overflow housing 30 and the outlet housing 24.Between the overflow housing 30 and the drain housing 24 there could be a locking means (not shown), in which, for example, a bayonet locking means exists in the region of the collar 52.On the other hand, an alignment securing means, for example in the form of vertically extending projections of one element, which engage in reversely vertically extending cut-outs of the other element, could also be present between the overflow housing 30 and the outflow housing 24 (not shown). Such an alignment would be useful, for example, if a washing machine connection (not shown) is provided through the drain housing 24 into the overflow housing 30.More specifically, in the case of a combination of a conventional wash basin outlet with a connection for discharging grey water from a washing machine, the inlet would be correspondingly remodeled and provided with a connection device (hose connection piece or the like). This connection device would preferably be arranged below the inflow 16 and above the further functional elements (means for physical and chemical / biological processing).The overflow housing 30 has in its upper region overflow openings 60 which extend with respect to the longitudinal axis L by an azimuthal angle range of 360° in four sections of 65° each, which are separated from one another by webs 61 of 25° each. The height of the overflow openings 60 is about 5 mm, but can be in the range from 2 mm to 20 mm. The total area of the overflow openings 60 defines the discharge rate at which a volume flow corresponding to the fitting must be discharged. In this case, 6 to 12 and more l / min are normal for tubs, showers and washing machines.In addition, the overflow housing 30 has in its lower region an annular space 62, which is designed as a dead space, i.e. without outflow downwards or to the side.The filter housing 32 has a central, cylindrical cage section 64, on which a filter fabric 66 (cf. FIGS. 7 and 9 ) is arranged, which forms the microscopic filter 68 of the device 10 for supplying grey water. The filter cloth 66 is, for example, a metal mesh, a plastic mesh, a microporous structure, or a membrane, or the like.If a metal mesh 66 is involved, this could be provided with a special coating, as is known, for example, under the trade name AGXX ® from Heraeus Ready Metals GmbH & Co. KG, Germany. As a result, germs already present in the grey water could be killed here. The active principle is referred to as ROS ("reactive oxygen species") and describes the killing effect of free oxygen radicals on germs such as viruses, bacteria, fungi, yeasts and algae.At the upper end 70 of the cage section 64, there is a circumferential collar 72 which is supported on the collar 52 of the overflow housing 30. The upper end 70 of the cage section 64 is formed with an aperture 71 for receiving the treatment housing 34.Extending between the collar 72 and the upper end 70 of the cage portion 64 are struts 74 which, with the passages 75 therebetween, form part of the macroscopic filter 76 of the gray water supply device 10. These struts 74 extend radially with respect to the longitudinal axis L.The cage portion 64 widens conically at the upper end 70 for receiving the treatment housing 34.In a central region of the cage section 64 at the level of the dead space 62, the cage section 64 has a groove 78, in which an elastic sealing ring 80 extending along the circumferential direction about the longitudinal axis L is arranged.At its lower end 86, the cage section 64 has a deflection plate 87, on whose vertically downwardly extending collars 87a a groove 88 is arranged, in which a resilient sealing ring 90 is located.This sealing ring 90 acts against the wall 92 of the valve housing 36 in the inserted state of the filter housing 32 into the overflow housing 30, whereby a seal is provided, forming the valve 94.The deflecting plate 87 designed as a closed plate is thus part of the valve 94, and it is designed to be slightly convexly curved in order to be able to divert grey water more easily into the discharge channel 122.The treatment housing 34 also has a cage section 96. The upper end of the cage section 96 is provided with an aperture, so that a treatment substance in the form of an stick 98 (see FIG. 11 ) can be placed in the treatment housing 34. Alternatively, however, the processing substance can be provided, for example, in tablet form, as granules or the like.The upper end 100 of the cage section 96 is formed as a collar which widens conically vertically upwards.The bottom 101 of the cage housing 96 is provided internally with upstanding ribs (not shown) to space the inserted stick 98 from the bottom 101.The cage section 96 is covered by a cap 102 with handle 103 which has a conically downwardly tapering collar 104. This collar 104 is adapted on the one hand to the conical contour of the collar 100 and on the other hand to the conical contour of the upper end 70 of the filter housing 32.In addition, the cap 102 is made of an elastic material, for example a thermoplastic elastomer (TPE), so that it can be easily removed from the collar 100 or can be plugged onto it.As a result, when the preparation housing 34 is inserted into the filter housing 32, the preparation housing 34 is clamped at the upper end 70 of the filter housing 32, while the preparation housing 34, the cage section 96 of which tapers downward in the opposite direction to the cage section 64, is mounted in this cage section 64, wherein there is a positive connection, but the clamping is produced at the upper end 70. Overall, there are thus no flow resistances between the cage section 64 and the cage section 96, and as a result, the treatment housing 34 can also be inserted into the filter housing 32 in any desired orientation with respect to a rotation about the longitudinal axis L.Moreover, the gray water supply device 10 has a cover 106, which during operation of the gray water supply device 10 prevents the user of the gray water generator 12 from looking into the gray water outlet 14 and for this purpose has an aesthetically shaped panel 108. This diaphragm 108 can be formed, for example, from ceramic, enamel, plastic, metal, or the like.The cover 106 also has six supports 110 arranged uniformly around the longitudinal axis L, with which supports the cover can be placed freely on the collar 72. These supports 110 extend radially with respect to the longitudinal axis L. Between the supports 110 there is a passage 112 through which grey water from the grey water generator 12 can be supplied to the device 10 for supplying grey water.This support 110 likewise provides macroscopic filtering, so that the covering is part of the macroscopic filter 76. In the case of a washing machine connection, however, this part of the macroscopic filter would be located in front of the washing machine connection and the macroscopic filtering would already take place on the machine side.The macroscopic filtering 76 as the first filter stage and the microscopic filtering 68 as the second filter stage form the means for the physical treatment of the grey water. A particular feature of the present invention is that the flow through both filter stages 76, 68 is purely hydrostatically driven.The treatment housing 34 with the stick 98 forms the means for chemical and / or biological treatment of the grey water. If the filter fabric is provided with, for example, the AGXX ®- coating from Heraeus Precious Metals GmbH & Co. KG, Germany, the filter fabric 66 is also part of these means for the chemical and / or biological treatment of the grey water.Between the outlet housing 24 and the overflow housing 30 there is an annular chamber 114 which ends in the annular chamber 44 or the overflow channels 46.Between the overflow housing 30 and the filter housing 32 there is an annular space 116 which ends in the dead space 62.The drain housing 24 includes an upwardly extending annular barrier 120 which provides an S-shaped drain channel 122.It can also be seen that the dead space 62 is not an integral component of the overflow housing 30, but is designed to be openable with a removable inner wall 124.For emptying sedimented contaminants accumulated in this dead space 62, the overflow housing 30 can be completely removed from the outlet housing 24 and disassembled by removing the inner wall 124. Then, the dead space 62 can be cleaned while removing the sediments, and these sediments are disposed of via the usual house garbage.The collar 52, the inner wall 124 and the wall 92 thus form a guide for the filter housing 32 in the device 10 for supplying grey water, so that the filter housing 32 can easily be removed from the device 10 for supplying grey water, more precisely from the overflow housing 30, and added, wherein after the insertion the respective seals automatically adjust when the filter housing 32 is pressed with its collar 72 onto the collar 52 of the overflow housing 30.It can also be seen that the filter housing 32 is formed in two parts in such a way that a first, upper cage section 126 and a second, lower cage section 128 consist, wherein the lower cage section 128 is pressed onto the lower end 130 of the upper cage section 126.The collar 132 of the lower cage section 128 engages around the lower end 130 of the upper cage section 126, wherein, for sealing and locking the two sections 126, 128, the elastic annular seal 80 is provided, which is received in the groove 78 of the lower end 130 and a groove 134 of the collar 132 of the lower section 128, with the result that a clip connection exists between the two sections 126, 128.The collar 132 has a recess 136 above it, which serves for clamping and supporting the filter fabric 66.In the collar 132 there is a further elastic annular seal 138 which is arranged in a groove 140. In the state shown in FIGS. 1 and 2, this annular seal 138 acts against the inner wall 124 of the dead space 62, as a result of which the filter housing 32 is mounted-as stated-next to the collar 52 and the wall 92 opposite the overflow housing 30.This collar 132 has a depression 142 and an adjoining axial section 144, in which a groove 146 with an elastic annular seal 148 is located (cf. FIG. 2 ).The overflow housing 30 has at its lower end 150 a projection 152 which serves as an abutment for the collar 132 of the filter housing 32. In the assembled state of the overflow housing 30 and the filter housing 32, the annular seal 148 sealingly abuts this lower end 150.The dead space 62 is thus formed here by the cooperation of the lower end 150 with the axial section 144 with the depression 142.If the inner wall 124 is connected more firmly to the collar 132 than to the lower end 150, then the inner wall 124 is automatically removed as the filter housing 32 is removed from the overflow housing 30, whereby the dead space 62 is broken, so that the device 10 for supplying grey water can be cleaned even more easily.The filter housing 32 also has a handle 154 projecting upwardly from the collar 72. This handle 154 on the one hand facilitates the removal of the filter housing 32 from the overflow housing 30, and on the other hand, a specific orientation of the filter housing 32 in the overflow housing 30 can be displayed thereby, so that the user can always set the required orientation precisely. In operation, this handle 154 does not interfere because it is located in a passage 112 of the cover 106.It can also be seen that the annular elastic sealing element 42 has downwardly pointing projections 156, which are accommodated in bearings 158 of the collar 40 of the outlet housing 24 for securing the sealing element 42 to the outlet housing 24.The basic mode of operation of the devices 10 for supplying grey water will be described below in conjunction with FIGS. 12-17.FIG. 12 shows the normal operation of the device 10 for supplying grey water, in which the outflow 18 is blocked with respect to the inflow 16 via the closed valve 94 and the grey water 160 is conducted from the inflow 16 to the outflow connection 20.In this case, the grey water 160 enters the device 10 for supplying grey water under the cover plate 108 through the passages 112 and is in this case subjected to a first macroscopic filtering by the supports 110.The grey water 160 then passes through the passages 75 of the filter housing 32, as a result of which it is filtered macroscopically again.This macroscopic filtering 76 removes coarse impurities and hairs from the grey water 160.The grey water 160 then reaches the annular chamber 116 between the overflow housing 30 and the filter housing 32.In this annular chamber 116, the grey water 160 can accumulate over a certain range, which is determined in its height by the vertical position of the overflow openings 60 with respect to the lower edge of the dead chamber 62. For example, this height is 6 cm.In this case, the grey water 160 penetrates radially inward through filter fabric 66. Finer soiling, but also foam, is retained in this case, as a result of which microparticles are filtered 68. The mesh width of the filter fabric 66 is preferably in the range between 10 μm and 1000 μm, whereby gravimetrically driven filtering without increase in pressure is possible and the structure can be made compact.The contaminants can sediment after their deposition on the filter fabric 66 and settle in the dead space 62. As a result, the filter fabric 66 is less heavily clogged and a continuous filtering and thus supply of grey water 160 to the discharge connection 20 is made possible.If the filter fabric 66 is provided with, for example, the AGXX ®- coating from Heraeus Ready Metals GmbH & Co. KG, Germany, then microorganisms already present in the grey water 160 are killed here, as a result of which a first chemical / biological treatment of the grey water 160 already takes place.The grey water 160 filtered and optionally chemically / biologically treated in this way flows through the upper cage section 126 of the filter housing 32 and past the treatment housing 34 and the stick 98 contained therein, wherein it also penetrates into the cage section 96 of the treatment housing 34, where it comes into contact with the active substance present in the stick 98.This active substance accumulates in the grey water 160 and chemically or biologically treats it. Depending on the substance used, which can also be an active substance mixture, the active substance develops an antimicrobial activity, degreasing, fat binding, defoaming, decalcification, odor reduction and / or deodorizing on the grey water 160. Thus, the gray water is not only stabilized, but also made more comfortable for the user to handle.The grey water 160 chemically or biologically treated in this way flows past the treatment housing 34 and out of the cage section 96 vertically downwards further into the lower section 128 of the filter housing 32.The valve 94 present there is prevented from continuing flow by the seat of the deflecting plate 87 on the wall 92 of the valve housing 36 sealed via the sealing ring 90, and instead flows through the passages 164 of the lower cage section 128 present between the struts 162 through the discharge duct 122 to the discharge connection 20, where it exits via the discharge surface 48.This derivative surface 48 encloses an overall azimuthal angular range of 180° with respect to the longitudinal axis L. In addition, the discharge surface 48 has an inclination of 10° in the flow direction of the grey water 160. As a result, the grey water 160 flows out of the discharge connection 20 in a very controlled manner and in a laminar manner, whereby foaming in the grey water collector (not shown) is effectively prevented.The active substance located in the stick 98 accumulates in the grey water 160 and, when a grey water storage device (not shown, for example a flushing tank of a toilet) is used, is transported into the grey water storage device, where it is effective in the grey water over the entire storage period.FIGS. 13 to 15 show the overflow operation of the device 10 for supplying grey water, in which the outflow 18 is blocked from the inflow 16 via the closed valve 94, but the grey water 160 is diverted from the inflow 16 to the outflow 18 because of a blockage of the microscopic filter 68.In this way, unfiltered grey water 160 is prevented from entering the grey water collector 702, which is designed as a toilet, and from causing the deposition of protective particles in and on functional elements (non-return flap, flushing fitting, filling valve, etc.-in each case not shown) and their subsequent loss of function or their calcification or otherwise types of adverse effects or odor nuisance.In the case of the clogging of the microscopic filter 68, the gray water 160 cannot permeate through the filter cloth 66 into the inside of the filter case 32. Instead, it builds up 166 above the dead space 62 in the annular space 116 between the overflow housing 30 and the filter housing 32.As soon as the grey water 160 reaches the vertical height of the overflow openings 60, it flows into the annular space 114 which exists between the overflow housing 30 and the outlet housing 24. As a result, the grey water 160 collects in the annular space 44 (cf. FIG. 14 ), from where it is discharged downward through the two overflow ducts 46 (cf. FIG. 15 ).As a result, the grey water 160 is transferred past the valve housing 36 into the outlet funnel 26 and from there reaches the outlet 18.Since the two overflow channels 46 likewise assume an azimuthal angle range of a total of 180°, all grey water 160 produced can be discharged from the grey water generator (not shown) via the device 10 for supplying grey water, so that no flooding can arise.Regardless of the overflow operation, foam which flows out of the grey water generator but does not pass through the filter fabric 66 can flow off through the overflow openings 60 at any time, whereby it is effectively prevented that such foam can reach the grey water collector even in normal operation.FIG. 16 shows the cleaning or maintenance operation of the device 10 for supplying grey water, in which the cover 106 together with the filter housing 32 for cleaning or maintenance is removed from the device 10 for supplying grey water.For this purpose, the cover 106 has been lifted off the collar 72 of the filter housing 32 and the filter housing 32 has been gripped on the handle 154 and pulled out of the overflow housing 30.It can be seen that now the grey water 160 coming from the grey water generator (not shown) enters through the inflow 16 into the device 10 for the grey water supply line and falls directly into the overflow housing 30.Any grey water 160 passing through the overflow openings 60 is conducted to the drain 18 via the overflow channels 46, as described for the case of the cleaning / maintenance operation in connection with FIGS. 13 to 15.However, the majority of the gray water 160 is directed vertically downward through the overflow housing 30. Since the barrier 120 has a significantly larger diameter of 42 mm than the inner wall 124, the diameter of which is 35 mm, the grey water 160 is passed directly into the outlet funnel 26 and from there to the outlet 18, where it can emerge without grey water being able to pass behind the barrier 120 and thus into the outlet connection 20.Thus, during the cleaning or maintenance operation of the gray water supply device 10, sediments and residual water located therein are rinsed out centrally through the outflow 18 together with the gray water 160 flowing in. In addition, the macroscopic filter 76 and the microscopic filter 68 can be rinsed and cleaned directly in the grey water generator, wherein the grey water 160 already supplied to the grey water collector remains unaffected thereby. Contamination and destabilization of the grey water 160 already supplied to the grey water collector is thereby effectively and automatically prevented by removing the filter housing 32.In the course of the cleaning, the filter fabric 66 can optionally also be cleaned or exchanged. For this purpose, only the lower cage section 128 has to be removed from the upper cage section 126 and the filter fabric 66, which is present as a sleeve 66, has to be pulled off from the upper cage section 126. This is desirable, for example, when there is an AGXX ®- coating of the filter fabric 66 on which inactivated microbial residues have deposited.After the cleaning or the replacement of the filter fabric 66, the latter is pushed onto the upper cage section 126 again and subsequently the lower cage section 128 is pushed onto the upper cage section 126, whereby the filter fabric 66 is clamped firmly at the same time.Finally, the filter housing 32 is inserted into the overflow housing 30 and the cover 106 is arranged again on the collar 72 of the filter housing 32.To clean the dead space 62, the overflow housing 30 is removed from the outlet housing 24 and disassembled, as already described.Finally, FIG. 17 shows the state of the gray water supply device 10 in which the cover 106 together with the treatment housing 34 has been removed from the filter housing 32 of the gray water supply device 10 in order to be able to fill the treatment housing 34 with a new stick 98.It can be seen that the valve 94 is now closed, so that basically the same gray water guides as in normal operation (cf. FIG. 12 ) or in overflow operation (cf. FIGS. 13 to 15 ) can be established, i.e. both a discharge of gray water 160 of a gray water generator (not shown) via the discharge connection 20 to a gray water generator (not shown) and the overflow of gray water 160 to the outlet 18 are possible.If, however, the operation of the grey water generator cannot be reliably prevented during the replacement of the stick 98, then the user of the device 10 for supplying grey water should be stopped from always simultaneously removing the filter housing 32 and optionally cleaning it when the stick 98 is replaced.For the replacement of the stick 98 with another stick or for the replacement of the stick 98, the preparation housing 34 is gripped on the handle 103 and pulled out of the filter housing 32.Then, the elastic cap 102 is peeled from the collar 100 of the treatment housing 34, thereby opening the cage portion 96.The new stick 98 is inserted into the cage section 96, if appropriate after removal of the old stick 98 or the remainings of the old stick 98, as a result of which it comes to lie on the bottom 101 of the cage section 96. The ribs (not shown) which project upward from the base 101 effect a spacing of the stick 98 from the base 101, so that the stick 98 in the treatment housing 34 can be well flushed by the grey water 160 and can dry after complete discharge of the grey water which has been produced.The cap 102 is then placed over the collar 100 again, as a result of which the collar 104 fits snugly against the collar 100 and the cap 102 thus securely closes the preparation housing 34.Finally, the treatment housing 34 is pressed back into the filter housing 32, as a result of which it is clamped in its upper end 70 and is thereby held securely.The cover 106 can now be arranged again on the collar 72 of the filter housing 32.The system 700 according to the invention for gray water use comprises, corresponding to FIGS. 18 a, 18 band 19, a gray water generator 12 in the form of a wash basin and a final gray water collector 702 in the form of a toilet, the device 10 according to the invention for supplying gray water from the gray water generator 12 to the device 500 according to the invention for gray water storage, the device 300 according to the invention for supplying fresh water and the device 500 according to the invention for gray water storage.It will be appreciated that the gray water use system 700 includes a front wall installation 704 to which both the washbasin 12 and the toilet 702 are secured by the sub-frame 706.The auxiliary frame 706 has a facing 708, the toilet 702 comprises a cover 710 and the device 500 for gray water storage is surrounded by a shell 712.Part of the cladding 708 is a cover 714 in the region of the jacket 712 and a cover 716 in the region of the toilet 702.On the front wall installation 704, the fresh water inlet 718 for the washbasin 12 is arranged in the usual manner, which fresh water inlet can be regulated by means of a corresponding fitting 720. Furthermore, there is an outlet 722 for the grey water coming from the washbasin 12 at the front wall installation 704, which outlet is not used further in the system 700 for grey water use. Finally, a fresh water feed (not shown) is arranged on the front wall installation, which is connected on the one hand to the fitting 720 and on the other hand to the device 300 for fresh water feed, and an outlet 724 for the toilet 702.The gray water storage device 500 has a flushing bow 502 which is connected to the flushing supply (not shown) of the toilet 702. The cover 714 has a central aperture 717 for passing through this scavenging bend 502.Both the gray water storage device 500 and the sheath 712 are attached to the cover 714.Operating elements 590 are provided for operating the flushing valve 546 of the device 500.It can be seen in FIG. 20 that the outflow 18 of the device 10 for gray water supply is coupled within the scope of the system 700 for gray water use to the central overflow pipe 538 of the device 500 for gray water storage.More specifically, the drain 18 is positioned over and thereby coupled to the overflow pipe 538. As a result, the vertical collar 49 adjoining the ring segment-shaped discharge surface 48 of the discharge connection 20 extends all around the overflow edge 536 of the central overflow 534.However, both the collar 49, the discharge funnel 26 and the outlet 18 are at a distance from the overflow edge 536 in the horizontal direction H and in the vertical direction V, so that the discharge of grey water from the first container 506 into the central overflow 534 is ensured by the overflow channel 726 formed in this way. More specifically, the distance of the drain 18 from the overflow edge 536 is laterally about 10 mm and vertically about 7 mm, while the distance of the collar 49 from the overflow edge 536 is laterally about 22 mm and vertically about 17 mm.It can also be seen in FIG. 20 that the discharge surface 48 will introduce the grey water emerging via it, which has been physically and chemically / biologically processed and discharged from the wash basin 12, directly into the first region 568 of the first container 506.In contrast, all grey water from the washbasin 12 that has not been discharged (grey water that overflows into the drain 18 as part of a blockage or grey water that is conducted into the drain 18 as part of a cleaning or maintenance) is supplied to the outlet 722 via the overflow pipe 538.In this way, the first region 568 will thus first be filled with grey water. The outflow of liquid from the second region 576 and thus also from the first region 568 will take place via the overflow pipe 534. When the first region 568 is completely filled with grey water, the grey water is transferred via the inner wall 566 into the second region 576 and completely fills the latter. In this case, excess grey water will pass into the overflow 534 on account of the higher vertical level of the overflow edge 536 with respect to the inner wall 566 only if the liquid level in the second container 586 is higher than the overflow edge 536.The exact structure and the mode of operation of this device 500 for gray water storage can be found in the applicant's utility model application filed on even date, "Device for storing gray water", the content of which in this respect is hereby incorporated in its entirety by reference.From the above description it has become clear that with the present invention a solution has been provided which brings improvements in that the device 10 according to the invention for feeding grey water 160 from a grey water generator 12 to a grey water collector is constructed in a simple and space-saving manner and can be integrated easily and without additional attachments into known grey water generators such as wash basins 12, bathtubs and the like. The device 10 according to the invention for supplying grey water enables the physical 68, 76 and chemical / biological treatment 66, 98 of the grey water 160. It can be easily cleaned and provides an automatic discharge of the grey water 160 to the drain 18 during cleaning, while in normal operation it conducts the grey water 160 from the grey water generator 12 to the grey water collector and thereby also provides an overflow 46, 60 into the drain 18 if the device 10 for the grey water supply should be clogged.List of reference characters10 In a preferred embodiment of the device according to the invention for supplying grey water, outlet 12 wash basin, grey water generator 14 grey water outlet 16 inflow 18 outflow 20 discharge connection 22 housing 24 outlet housing 26 outlet funnel 28 fastening flange 30 overflow housing 32 filter housing 34 treatment housing 36 valve housing 38 screw connection 40 upper encircling collar 42 annular elastic sealing element 44 annular chamber 46 surrounded vertically downwards overflow channels 48 annular segment-shaped discharge surface 50 inner projection 52 collar 54 groove 56 elastic sealing ring 58 inner wall of the outlet housing 24 60 overflow openings 61 webs 62 annular chamber, Dead space 64 cylindrical cage section 66 filter fabric 68 microscopic filter 70 upper end of the cage section 64 72 encircling collar 74 struts 75 passages 76 macroscopic filter 78 groove 80 elastic sealing ring 86 lower end of the cage section 64 87 deflection plate 87 acrual 88 groove 90 elastic sealing ring 92 wall of the valve housing 36 94 valve 96 cage section of the preparation housing 34 98 stick 100 upper end of the cage section 96, collar 101 bottom of the cage housing 96 102 cap 103 handle 104 collar 106 cover 108 aperture 110 supports 112 passages 114 annular space 116 annular space 120 annular barrier 122 S-shaped discharge channel 124 inner wall of the dead space 62 126 first, upper cage section 128 second, Lower cage section 130 Lower end of the upper cage section 126 132 Collar of the lower cage section 128 134 Groove of the collar 132 136 Recess 138 Elastic annular seal 140 Groove 142 Depression 144 Axial section 146 Groove 148 Elastic annular seal 150 Lower end of the overflow housing 30 152 Projection 154 Handle 156 Projections of the sealing element 42 158 Bearings of the collar 40 160 Grey water 162 Struts 164 Passages 166 Storage of the grey water 160 in the annular space 116 300 Preferred configuration of the device according to the invention for supplying fresh water 500 Preferred configuration of the device according to the invention for storing grey water 502 Flushing bow 504 Housing 506 First insert, first container, "Intermediate storage container" 516 vertical wall 534 central overflow 536 overflow edge 538 overflow pipe 540 overflow connection 566 inner wall 568 first region of the first container 506 576 second region of the first container 506 590 control elements for toilet 702 700 preferred embodiment of the system according to the invention for grey water use 702 grey water collector, toilet 704 front wall installation 706 auxiliary frame 708 veneer 710 lid of the toilet 702 712 casing 714 cover 716 cover 717 central opening of the cover 714 718 fresh water inlet 720 fitting of the fresh water inlet 722 outlet 724 outlet for the toilet 702 726 overflow channel from the first container 506 into the central overflow 534 728 siphon for toilet 702 H horizontal direction L longitudinal axis of the device 10 for grey water feed V vertical direction

Claims

Device (10) for supplying grey water (160) from a grey water generator (12) to a grey water collector (500; 702), wherein the grey water generator (12) has a grey water outlet (14), wherein the device (10) has an inflow (16), which can be connected to the grey water outlet (14), and an outflow (18), characterized in that the device (10) also has, in addition to the outflow (18), an outflow connection (20) for the outflow of grey water (160) to the grey water collector (500; 702).Device (10) according to claim 1, characterised in that the device (10) can be fastened in an opening (14) of the grey water generator (12) and / or that the grey water generator is a washbasin (12), a shower, a bathtub, a sink, a washing machine, a tumble dryer or the like and / or that the grey water collector (500) is a wash tank, preferably for a toilet (702), a urinal or the like.Device (500) according to Claim 1 or 2, characterized in that means (68, 76) for the physical treatment of the grey water (160) consist, wherein the means for the physical treatment preferably have a filter (68, 76) for the grey water (160).Device (10) according to claim 3, characterised in that the means (68, 76) for the physical treatment of the grey water (160) comprise a first filter (76) for filtering macroscopic contaminations, such as hairs, rings, ear rings or the like, wherein the first filter (76) preferably has a filter width in the range of 1 mm to 10 mm, preferably in the range of 2 mm to 7 mm, in particular in the range of 3 mm to 5 mm, and / or that the means (68, 76) for the physical treatment of the grey water (160) comprise a second filter (68) for filtering microscopic contaminations, wherein the second filter preferably has a filter width in the range of 25 μm to 2 mm, preferably in the range of 50 μm to 1 mm, In particular in the range from 100 μm to 500 μm and / or that at least one filter (69) of the means for physical treatment of the grey water (160) has a fabric (66), preferably a metal, a plastic fabric, a microporous structure or a membrane and / or that at least one filter (68) of the means (68, 76) for physical treatment of the grey water (160) has an overflow (60), which preferably communicates with the outflow (18), and / or that at least one filter (68, 76) of the means (68, 76) for physical treatment of the grey water (160) has an outflow (122), which preferably opens into the outflow connection (20), and / or that the means (68, 76) for physical treatment of the grey water (160) are designed to be at least partially removable from the device (10).Device (10) according to either of Claims 3 and 4, characterized in that the means (68, 76) for the physical treatment of the grey water (160) comprise a dead space (62) which is preferably arranged a) between the inflow and the filter in the flow direction of the grey water (160) and / or b) is designed as a vertically extending dead space (62) and / or c) is designed as an annular space (62) and / or e) is designed to be openable, wherein in particular a side wall (124) of the dead space (62) is designed to be removable, and / or f) is designed to be U- or V-shaped.Device (10) according to one of the preceding claims, characterized in that means (66, 98) for the chemical and / or biological treatment of the grey water (160) consist, wherein the means (66, 96, 98) preferably have a receiving region (96) for a chemical and / or biologically acting treatment substance (98).Device (10) according to Claim 6, characterized in that constituents of the means (66, 96, 98) for chemically and / or biologically processing the grey water (160) are arranged in the means (68, 76) for physically processing the grey water (160), preferably a filter (68, 76) according to Claim 3, wherein the constituents (66, 96, 98) are designed in particular to be removable from the means (68, 76) for physically processing the grey water (160), and / or in that constituents (66, 96, 98) of the means (66, 96, 98) for chemically and / or biologically processing the grey water (160) are arranged after the filter (68, 76) in the flow direction of the grey water (160) from the inflow (16) to the filter outflow (122) according to Claim 4, and / or in that the means (66, 96, 98) are arranged after the filter (68, 76), 98 ) for the chemical and / or biological treatment of the grey water (160) comprise a container (94) through which the grey water (160) can flow, which container is preferably designed as a cage and in particular openable, and / or that the means (66, 96, 98) for the chemical and / or biological treatment of the grey water (160) are designed to be at least partially removable from the device (10) and / or that the treatment substance (98) is adapted to act in the sense of at least one of the properties from the group comprising: antimicrobial activity, degreasing, fat binding, defoaming, decalcification, odor reduction and deodorizing.Device (10) according to one of the preceding claims, characterized in that the discharge connection (20) extends with respect to a longitudinal axis (L) over an azimuthal range of at least 30°, preferably at least 60°, preferably at least 90°, in particular at least 180°, and / or in that the discharge connection (20) has a discharge surface (48), which preferably runs inclined in the flow direction of the grey water (160), wherein the inclination is preferably in the range 1° to 30°, further preferably in the range 5° to 20°, in particular in the range 8° to 15°.Device (10) according to one of the preceding claims, characterized in that the device (10) has a housing (22) which preferably has at least one element from the group comprising: outlet housing (24), overflow housing (30), filter housing (32), treatment housing (34), outlet funnel (26) and valve housing (36), wherein the housing (22) is designed (28, 38) in particular to be screwed to the grey water generator (12).Device (10) according to one of the preceding claims, characterized in that the device (10) provides a first path which conducts grey water (160) from the inflow (16) to the outflow (18), and a second path which conducts grey water (160) from the inflow (16) to the outflow connection (20), wherein the paths are preferably designed to be switchable, in particular manually switchable.Device (10) according to claim 10, characterised in that the device (10) has an openable closure (94) for the first path, wherein the closure (94) is preferably g) of sealed design and / or h) of removable design and / or i) is arranged on the means (68) for physical treatment and / or j) is arranged on the means (66, 96, 98) for chemical and / or biological treatment.Device (10) according to claim 10 or 11, characterised in that the second path comprises an overflow (60) of the device (10), wherein the overflow (60) preferably at least partially bypasses the means (68, 76) for the physical treatment of the grey water (160), wherein the overflow (60) is in particular connected to the drain (18), and / or that a vertically extending barrier (120) exists between the first path and the second path, wherein an upper edge of the barrier (120) is preferably configured to be concealed within the framework of the first path, wherein the first path in particular has a channel section which extends vertically to below the upper edge, and / or that the first path is configured to be free when the closure (94) according to claim 11 is removed, and / or that the first path is configured to be free when the means (68, 68, 68, 76 ) for the physical treatment of the grey water according to claim 3 and / or the means (66, 96, 98) for the chemical and / or biological treatment according to claim 6 are at least partially removed from the device (10), and / or that the second path is freely formed when the first path is closed, and / or that the device (10) is formed to guide grey water (160) from the inflow (16) to the outflow (18), when the first path is closed and the means (68, 76) for the physical treatment of the grey water (160) according to claim 3 are at least partially blocked, and / or when the first path is closed and the means (66, 96, 98) for the chemical and / or biological treatment according to claim 3 are at least partially blocked.System (700) for grey water use, comprising the device (10) according to any one of claims 1 to 12, wherein additionally a grey water generator (12) and / or a grey water collector (500, 702) consist.The system (700) according to claim 13, characterized in that the system (700) comprises a device (500) for storing grey water in a grey water container (506, 586) and / or that the system (700) comprises a device (300) for supplying a grey water container (500) with fresh water from a fresh water connection (302).

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