WATER DISTRIBUTION SYSTEM FOR MAINTAINING AN ARTIFICIAL POOL

FR3133401B1Active Publication Date: 2025-02-14TRIQUET ERIC
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Patent Information

Application Number
FR2022002055
Authority / Receiving Office
FR · FR
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-03-09
Publication Date
2025-02-14
Estimated Expiration
2042-03-09

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Patent Text Reader

Abstract

The invention relates to a water distribution device for maintaining a basin (100) comprising: - two parallel pipes (15, 17) connected to the water inlet (3) at one end, the first pipe (15) being configured to be connected to a water outlet (7), and the second pipe (17) being configured to be connected to a discharge outlet (5) opening into the basin (100), characterized in that it comprises: - two connectors (11, 13) for a filter (9), configured to be connected to a filter (9) filtering the water of the basin (100) when water flows through said filter (9) in a filtration direction; - pilot-operated valves (V1 to V6), and a control unit (21) configured to allow, by actuating the valves (V1 to V6), the passage of water pumped from the basin (100):* from the water inlet (3) to the connector (11) of the first pipe (15), and from the connector (13) of the second pipe (15) to the discharge in filtration mode,* from the water inlet to the filter connector (13) of the second pipe (17), and from the connector (13) to the water outlet in a backwash mode, * from the water inlet (3) to the discharge (5) without passing through the filter (9) in a recirculation mode. Figure for the abbreviation: Fig. 2,
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Description

Title of the invention: WATER DISTRIBUTION DEVICE FOR MAINTAINING AN ARTIFICIAL POOL Technical field of the invention

[0001] The present invention relates to the general field of swimming pools, in particular private swimming pools. The invention relates more particularly to the field of swimming pool maintenance: the filtration, circulation and evacuation of their water. Prior art

[0002] Swimming pools require ongoing maintenance to maintain the quality of their water and prevent the proliferation of organisms that degrade the said water quality. For some individuals, this maintenance is a deterrent to purchasing a swimming pool.

[0003] Pump and filter systems are used for this maintenance. In these systems, a pump draws water and circulates it through the filter. The filter extracts microorganisms and other particles, which accumulate at the inlet. The filtered water is then redirected to the pool.

[0004] Swimming pool filters are generally washable filters: by circulating water in the opposite direction to that of water filtration, the particles accumulated in the filter are extracted and carried away by the water circulating in the opposite direction. The filter is then reusable.

[0005] The pool water must also be able to be recirculated regularly in order to avoid stagnation and especially when a one-off addition of chlorine ("chlorine shock"), particularly in the form of sodium dichloroisocyanurate granules, is carried out. A problem encountered in the case of private pools is that the chlorine (in the form of hypochlorate ion) is retained by the filter.

[0006] It is therefore necessary to provide a bypass for the filter.

[0007] The water must also be able to be evacuated to the sewers, after washing the filter and for emptying or drying the swimming pool.

[0008] These various operations multiply the water pipes and the valves to be operated to switch between said pipes. This makes maintenance management complicated for pool users without specific knowledge of the field.

[0009] Public swimming pools, with larger basins, use continuously operating systems for maintaining their water: a pump continuously draws water, filtering is carried out on this drawn water, as well as other operations such as disinfection with ultraviolet radiation, addition of chlorine (in particular by bubbling gaseous dichlorine), heating of the water, etc.

[0010] Large pools of several thousand cubic meters, as well as large public swimming pool buildings, justify the construction of large water treatment units, including all the pipes and water maintenance systems. These units are presented in the form of a dedicated room, housing all the systems.

[0011] Specialists configure and adjust the various subsystems of these units according to the size of the pool, the number of users, the temperature, etc., and carry out routine operations on said units, such as replacing chlorine gas cylinders, increasing or reducing the flow rate of the pumps or the chlorine bubbler, etc.

[0012] However, an individual who has acquired a modest-sized pool cannot necessarily dedicate an entire room to the automated maintenance of his pool, nor employ a pool maintenance specialist. Such a room would represent an additional cost and a loss of land.

[0013] Due to the large volumes of water and the intensive and continuous use of the pools, the continuous operation of the water treatment systems, at least while said pools are in use, is justified despite the costs it generates in the case of a public swimming pool.

[0014] However, in the case of a private swimming pool, used intermittently and with less intensity, continuous operation is not economically justified.

[0015] In particular, for private pools, there are monolithic valves known as multi-way valves and in particular “six-way” valves which include a selector with several positions, each position corresponding to a particular operating mode (filtration, filter washing, emptying, etc.).

[0016] These valves present a high risk of leakage over time, due to a complex selector and moving sealing parts. In addition, their monolithic nature means that they must be replaced in their entirety in the event of failure of one element.

[0017] Thus, there is a need for a swimming pool water treatment system that is compact and easy to use. In particular, said system must be able to be used by users without any particular prior knowledge. Brief description of the invention

[0018] In order to meet this need, the invention proposes a water distribution device for maintaining a pool, in particular an artificial pool, comprising: - a water inlet configured to be connected to a pump pumping water from the pool, - a first and a second pipe, in parallel with each other and connected to the water inlet at one end, the first pipe being configured to be connected to a water outlet at the other end, and the second pipe being configured to be connected to a discharge opening into the basin, characterized in that it comprises: - two connectors for a filter, configured to be connected to a filter filtering the water of the pool when water flows through said filter in a filtration direction and the circulation of the water in the opposite direction causing rinsing of the filter, a first connector forming a filter inlet being arranged on the first pipe, between the water inlet and the water outlet, and a second connector forming a filter outlet being arranged on the second pipe, between the water inlet and the discharge, - pilot-operated valves, and a control unit configured to actuate said valves, and to pass, by actuating the valves, water pumped from the pool: * from the water inlet to the connector of the first pipe, and from the connector of the second pipe to the discharge in a filtration mode, * from the water inlet to the filter connector of the second pipe, and from the connector to the water outlet in a washing mode, * from the water inlet to the discharge without passing through the filter in a recirculation mode.

[0019] This device allows simplified and at least partially automated maintenance. Since the control unit manages the open or closed state of the valves, false and potentially dangerous actuation is avoided. The individual elements, pipes, valves, etc. can also be interchanged separately.

[0020] The device further comprises a filter bypass line, which connects the first and second lines in parallel to the filter, and: - a first valve between the water inlet and the filter connector of the first pipe, - a second valve between the filter connector of the first line and the filter bypass line, - a third valve between the water inlet and the filter connector of the second pipe, - a fourth valve at the filter connector of the second line, - a fifth valve at the filter bypass line, - a sixth valve on the second line between the filter bypass line and the discharge.

[0021] The discharge mode is particularly indicated when adding chlorine, which is not retained by the filter which is bypassed.

[0022] The device may further have one or more of the following characteristics.

[0023] The control unit is then advantageously configured to pass, by actuating the valves, water pumped from the artificial basin from the water inlet to the connector for filter of the first line, and from the connector for filter of the second line to the water drain in a rinse mode.

[0024] This rinsing mode allows the particles coming out of the filter to be evacuated when returning to filtration mode after washing the filter.

[0025] The control unit can be connected to a terminal having an interface, comprising at least one switch, the actuation of which causes switching between different operating modes.

[0026] The control unit may be connected to an antenna, configured to connect the control unit and the terminal, on which the switch is arranged.

[0027] The control unit may further be connected to a clock, and be programmable to automatically switch between different operating modes at predetermined times.

[0028] The control unit may be configured to switch between an automatic mode, in which switching between different operating modes is automatic at predetermined times, and a manual operating mode, in which switching between different operating modes is managed by user actuation of the switch.

[0029] The control unit may be configured to perform switching cycles between the different operating modes, with: - operation in filtration mode for a first period, then - operation in washing mode for a second period.

[0030] The control unit may be configured to execute cycles further comprising operation in rinse mode for a third duration after each operation in wash mode for a second duration. Brief description of the figures

[0031] Other advantages and characteristics will appear on reading the following description of the figures, among which:

[0032] [Fig-1] is a schematic representation of a basin with a maintenance device water,

[0033] [Fig.2] is a schematic representation of a first embodiment of a water dispensing device for the water maintenance device of [Fig.l],

[0034] [Fig.3] is a schematic representation of a second embodiment of a water dispensing device for the water maintenance device of [Fig.l],

[0035] [Fig.4] is a schematic representation of a control unit for the device of Figures 2 and 3, with different elements connected to said control unit,

[0036] [Fig.5] is a flowchart illustrating the operation of the water distribution device of Figures 2 and 3.

[0037] The embodiments shown in the figures and described below are given as a descriptive and non-limiting example. Other embodiments can be obtained by slightly modifying the characteristics of the described embodiments or by combining characteristics of different embodiments where possible. Detailed description of the figures

[0038] [Fig.l] is a schematic representation of a basin 100 with a water maintenance device 200.

[0039] The basin 100 is in particular an artificial basin, for example a swimming pool, a bathing pool, a jacuzzi or other.

[0040] The water maintenance device 200 comprises in particular: a pump 1 and a water distribution device 10, the pump 1 being connected to a water inlet 3 of said water distribution device 10.

[0041] The pump 1 is for example integrated into a maintenance robot, which travels along the bottom of the pool, possibly equipped with rotating brushes. Alternatively, the pump 1 can be remote, and be located in, for example, a dedicated room which contains the rest of the water maintenance device 200, if such a room is available.

[0042] The water distribution device 10 is connected to a discharge 5, opening into the basin 100, and to a water outlet 7, opening for example into a connection to the sewers or to a rainwater outlet.

[0043] A filter 9 is connected to the water distribution device 10 by two filter connectors 11, 13.

[0044] The filter 9 is in particular a reversible or washable filter. These filters are designed to filter water as it passes through them in one direction, in the filtration direction, and to be washed by said water as it passes through them in the other direction, in the washing direction. For example, sand filters are such washable filters: in their filtration direction the particles (and part of the solutes) are retained by the sand, and in their washing direction the water carries away the particles previously retained in filtration mode.

[0045] A first embodiment of water distribution device 10 is shown in more detail in [Fig.2].

[0046] The water distribution device 10 comprises a first pipe 15 and a second pipe 17, in parallel with each other and connected to the water inlet 3, and therefore to the pump 1, at one end. The first pipe 15 is configured to be connected to the water outlet 7 at the end opposite the water inlet 3. The second pipe 17 is configured to be connected to the discharge 5.

[0047] A bypass line 19 of the filter 9 connects the first and second lines 15, 17 in parallel of the filter 9.

[0048] The first filter connector 11, forming the inlet of the filter 9, is arranged on the first pipe 15, between the water inlet 3 and the outlet 5, and the second filter connector 13, forming the outlet of the filter 9, is arranged on the second pipe 17, between the water inlet 3 and the outlet 5.

[0049] When the filter 9 is connected to the filter connectors 11, 13 and correctly oriented, water entering through the inlet of the filter 9 comes out filtered through the outlet of the filter 9. In the opposite direction, water entering through the outlet of the filter 9 comes out loaded with particles previously filtered through the inlet of the filter 9.

[0050] An arrow indicates in [Fig.2] the direction of water circulation resulting in filtration: from the connector 11 of the first pipe 15 (which is therefore the filter inlet 9) to the connector 13 of the second pipe 17 (which is therefore the filter outlet 9).

[0051] Circulation in the opposite direction to the filtration direction causes the filter 9 to be washed, carrying away some of the previously filtered particles.

[0052] The water distribution device 10 comprises pilot-actuated valves VI, V2, V3, V4, V5, V6, and a control unit 21 configured to actuate said valves VI to V6.

[0053] The control unit 21 comprises in particular an electronic memory and calculation means, such as a processor. The control unit 21 controls, for example, the valves VI to V6 by means of electronic actuators such as transistors.

[0054] The control unit 21 may be a dedicated box, or be integrated into a control circuit for the devices of the pool 100, also controlling other systems of the pool (lighting, closing flap of the pool 100, pump 1, etc.).

[0055] Valves VI to V6 are, for example, solenoid valves, and actuation of valves VI to V6 causes them to switch between an open state, where water can pass through the valve VI to V6 in question, to a closed state, where valve VI to V6 stops the circulation of water.

[0056] By actuating valves VI to V6, the control unit 21 selectively directs the water pumped from the basin 100: * from the water inlet 3 to the filter connector 11 of the first pipe 15, and from the filter connector 13 of the second pipe 17 to the discharge 5 in a filtration mode, * from the water inlet 3 to the filter outlet 13 via the second pipe 17, and from the filter inlet 11 to the drain 7 in a washing mode, * from water inlet 3 to discharge 5 without passing through filter 9 in recirculation mode, * from the water inlet 3 to the filter connector 11 of the first line 15, and from the filter connector 13 of the second line 17 to the water outlet 7 via the filter bypass line 19 in a rinse mode.

[0057] The presence of the three operating modes: filtration, washing and recirculation allows the management of a private pool of modest size, in an at least partially automated manner: the filtration mode is adopted to maintain the clarity of the water, and the washing mode allows the maintenance of the filter 9. The recirculation mode allows the user to add chlorine in granular or liquid form, while preventing the filter 9 from absorbing the added chlorine.

[0058] To be able to switch between these different modes, the valves VI to V6 are notably arranged as follows on the water distribution device 10.

[0059] A first valve VI is arranged on the first pipe 15 between the water inlet 3 and the filter connector 11 of the first pipe 15.

[0060] A second valve V2 is arranged between the filter connector 11 of the first pipe 15 and the filter bypass pipe 19.

[0061] A third valve V3 is arranged on the filter connector 13 of the second pipe 17.

[0062] A fourth valve V4 is arranged between the water inlet 3 and the filter connector 13 of the second pipe 17.

[0063] A fifth valve V5 located at the level of the filter bypass line 19.

[0064] A sixth valve V6 located on the second pipe 17 between the filter bypass pipe 19 and the discharge 5.

[0065] To direct the water of the basin 100 in the filtration mode from the water inlet 3 to the discharge 5 via the filter 9, the control unit 21 switches the states of the valves VI to V6 so that the first valve VI is open, the second valve V2 is closed, but is not actually reached by the water, the third valve V3 is open, the fourth valve V4 is closed, the fifth valve V5 is closed, and the sixth valve V6 is open.

[0066] To direct the water of the basin 100 in the recirculation mode, from the water inlet 3 to the discharge 5 without passing through the filter 9, the control unit 21 switches the states of the valves VI to V6 so that the first valve VI is closed, the second valve V2 is closed, the third valve V3 is closed, the fourth valve V4 is open, the fifth valve V5 is closed, and the sixth valve V6 is open.

[0067] The recirculation mode is particularly suitable when the user makes a one-off addition of chlorine, directly into the pool 100 in the form of dichloroisocyanurate, which must not or only slightly be stopped by the filter 9.

[0068] To direct the water of the basin 100 in the washing mode from the water inlet 3 to the outlet 5 by washing the filter 9, the control unit 21 switches the states of the valves VI to V6 so that the first valve V1 is closed, the second valve V2 is open, the third valve V3 is open, the fourth valve V4 is open, the fifth valve V5 is closed, and the sixth valve V6 is closed.

[0069] The washing mode is to be used punctually and briefly to regenerate the filter 9, in which the filtered particles accumulate.

[0070] To direct the water of the basin 100 in a rinsing mode from the water inlet 3 to the outlet 5 via the filter 9 in the filtration direction, the control unit 21 switches the states of the valves VI to V6 so that the first valve VI is open, the second valve V2 is closed, the third valve V3 is open, the fourth valve V4 is closed, the fifth valve V5 is open, and the sixth valve V6 is closed.

[0071] The rinsing mode is to be used briefly after operation in washing mode. Indeed, washing has the effect of mixing the sand or the filtering load of the filter 9 and the previously filtered particles.

[0072] When returning to filtration mode, in the absence of an intermediate step of operation in rinsing mode, the filtered particles close to the outlet of the filter 9 will be carried away and entrained into the basin 100 by the first liters of water leaving the filter 9.

[0073] By using the rinse mode briefly after operation in wash mode, the water leaving the filter 9 and loaded with previously filtered particles is evacuated.

[0074] To direct the water of the basin 100 in a drain mode from the water inlet 3 to the outlet 5 without passing through the filter 9, the control unit 21 switches the states of the valves VI to V6 so that the first valve VI is open, the second valve V2 is open, the third valve V3 is closed, the fourth valve V4 is closed, the fifth valve V5 is closed, and the sixth valve V6 is closed.

[0075] In the drain mode, the water from the basin 100 is directed towards the water outlet 7 without passing through the filter 9. This drain mode makes it possible to empty the basin 100, partially or completely, in order to prepare it for winter or to then fill it with new water.

[0076] The emptying of the basin 100 can, according to particular embodiments, be carried out at least partially by adopting a washing or rinsing operating mode, passing through the filter 9 either in the washing direction (washing mode) or filtration (rinsing mode). In these operating modes, the water is directed towards the drain 5.

[0077] Other operating modes are also possible: a closed mode, in which all valves VI to V6 are closed, and a dry mode, in which all valves VI to V6 are open. The closed mode is for example adopted in winter or when it is planned not to use the basin 100 for an extended period. The dry mode makes it possible, before switching to closed mode and after emptying the basin 100, to prevent water from remaining in a section of the pipes 15, 17, water which, if frozen, can damage the water distribution device 10.

[0078] [Fig. 3] shows an alternative embodiment of water distribution device 10, particularly suitable for small pools (total volume less than 30 cubic meters typically) using a small filter 9.

[0079] The control unit 21 and its connections with the valves VI to V5 are not shown in [Fig.3], but are nevertheless present as in [Fig.2].

[0080] This water distribution device 10 differs from that of [Fig.2] in that it does not include a filter bypass pipe 19, and in the number and arrangement of its valves VI to V5, five in number instead of six.

[0081] A first valve VI is arranged on the first pipe 15 between the water inlet 3 and the filter connector 11 of the first pipe 15.

[0082] A second valve V2 is arranged on the filter connector 11 of the first pipe 15.

[0083] A third valve V3 is arranged between the filter connector 11 of the first pipe 15 and the water outlet 7.

[0084] A fourth valve V4 is arranged between the water inlet 3 and the filter connector 13 of the second pipe 17.

[0085] A fifth valve V5 located between the filter connector 13 of the second pipe 17 and the discharge 5.

[0086] To direct the water of the basin 100 in the filtration mode from the water inlet 3 to the discharge 5 via the filter 9, the control unit 21 switches the states of the valves VI to V5 so that the first valve VI is open, the second valve V2 is open, the third valve V3 is closed, the fourth valve V4 is closed and the fifth valve V5 is open.

[0087] To direct the water of the basin 100 in the recirculation mode, from the water inlet 3 to the discharge 5 without passing through the filter 9, the control unit 21 switches the states of the valves VI to V6 so that the first valve VI is closed, the second valve V2 is closed, the third valve V3 is closed, the fourth valve V4 is open and the fifth valve V5 is open.

[0088] To direct the water of the basin 100 in the washing mode from the water inlet 3 to the outlet 5 by washing the filter 9, the control unit 21 switches the states of the valves VI to V6 so that the first valve V1 is closed, the second valve V2 is open, the third valve V3 is open, the fourth valve V4 is open and the fifth valve V5 is closed.

[0089] The embodiment of [Fig.3] does not allow a rinsing mode, in which water is injected into the filter 9 in the filtration direction, then directed towards the water outlet 7.

[0090] In particular, the rinsing mode is superfluous for small basins 100, for which a small filter 9 is used, filter 9 which contains only a reduced quantity of particles filtered before washing.

[0091] Also, the embodiment of [Fig.3] makes it possible, by eliminating the rinsing mode, to reduce the number of valves VI to V5, and thus to reduce the size and cost of the water distribution device 10. Further, the size and capacity of the control unit 21 can be reduced, due to the reduced number of valves VI to V5, with fewer lines connecting the control unit 21 to the valves VI to V5.

[0092] The management of the washing cycles of the filter 9 is also simplified.

[0093] [Fig.4] shows in more detail the control unit 21 and various elements to which she is connected.

[0094] The control unit 21 is shown connected to a valve V1 whose open or closed state it controls. The other valves V2 to V6 or V2 to V5 are not shown for clarity.

[0095] The control unit 21 is notably connected to a terminal 23, which forms an interface with the user by displaying one or more virtual switches with which the user interacts.

[0096] The terminal 23 is here, for example, a telephone, on which a corresponding application is installed. Alternatively, the terminal 23 may be a simple box provided with switches with which the user interacts.

[0097] The control unit 21 is in particular connected to an antenna 25, for example a Wi-Fi or Bluetooth transmitter, which connects the control unit 21 to the terminal 23 carrying the interface.

[0098] The control unit 21 is also connected to a clock 27, possibly integrated into the control unit 21 in the form of an integrated circuit.

[0099] According to the embodiment shown, the antenna 21 is a Wifi adapter, which is connected to the internet (represented by a cloud). The terminal 23 is then a telephone or connected device, on which a dedicated management application is installed.

[0100] The control unit 21 is then advantageously programmable to automatically switch between different operating modes at predetermined times, chosen by the user.

[0101] The control unit 21 can then switch between an automatic mode, in which the switching between different operating modes is automatic and at predetermined times, and a manual operating mode, in which the switching between different operating modes is managed by the actuation of the switch.

[0102] [Fig.5] illustrates such an operation in the form of an organizational chart.

[0103] The management method 300 of the maintenance device 200 begins with a step 301 of prior selection by the user of the manual or automatic mode.

[0104] If the user chooses the manual mode, a manual selection step 303 of the operating mode follows, in which the user is offered the accessible operating modes: filtration, recirculation, washing, rinsing, etc.

[0105] The user then chooses during a selection step from among the accessible operating modes 303a, 303b, 303c, 303d.

[0106] It is notably provided that the user can choose a “chlorine shock” operating mode in which the control unit 21 switches the water distribution device 10 to recirculation mode for at least a predetermined duration, or even until the user manually switches to another operating mode. The “chlorine shock” mode is then engaged by the user when he adds chlorine to the pool water, notably in soluble form such as sodium dichloroisocyanurate.

[0107] The user thus switches between the different modes offered according to the needs that he considers appropriate for the maintenance of his pool 100.

[0108] If the user chooses the automatic mode, the control unit 21 then takes care of switching between the different operating modes of the maintenance device 200, in particular by executing switching cycles between the different operating modes, with: - operation in filtration mode 305 for a first duration, then - operation in washing mode 307 for a second duration, - operation in rinsing mode 309, if the water distribution device 10 allows it, for a third duration.

[0109] Optionally, the control unit 21 can furthermore switch, after operation in washing mode 307, or rinsing 309 if present, to recirculation mode 311 for a fourth duration, before returning to filtration mode 305 and therefore restarting the cycle.

[0110] These cycles of filtration 305, washing 307 then rinsing 309 correspond to the procedure for use (filtration 305) and maintenance of the filter 9 (washing 307 then rinsing 309). Said cycles are executed automatically, and the durations of the different operating modes can be optimized according to criteria such as the volume of the pool 100, the temperature and chemistry of the water in the pool 100, the intensity of use of the pool 100, the pressure in the filter 9, the level of tanks of maintenance products in the pool 100 (chlorine precursor, pH regulators, etc.), the outside temperature, etc.

[0111] The control unit 21 can for this purpose be connected to corresponding sensors such as thermometers, conductimetry sensors, pH and redox probes, absorbance sensors etc. to optimize the durations of the operating modes for example according to tables stored in an electronic memory of the control unit 21.

[0112] By capturing the pressure in the filter 9, the control unit 21 can prevent damage to the maintenance device 200, in that the control unit 21 can cut off the pump 3 as soon as a pressure threshold is reached in the filter 9, before the connectors 11, 13 or one or more valves VI to V6 break, or alternatively switch to washing mode with or without sending an alert to the user.

[0113] Additional embodiments are directly derivable from those previously described by connecting the control unit 21 to additional devices such as: - a water inlet injecting water into the basin 100, from an urban network or a reservoir, and the control unit 21 of which controls the flow rate, - a shutter selectively closing the basin 100, - lighting - massage or decorative nozzles (artificial waterfall, fountain, etc.),

[0114] - a salt electrolyser, providing hypochlorate ions,

[0115] - a vacuum cleaner or cleaning robot,

[0116] - an alarm warning of a fall, for example of a child, into the pool,

[0117] - a surveillance camera,

[0118] - pumps injecting maintenance products from tanks.

[0119] In particular, the control unit 21 can adjust the operating mode filtration, washing, rinsing, recirculation with the status of additional devices.

[0120] The water distribution device 10 and the maintenance device 200 in which it is used allow simplified and optimized management of the maintenance of the pool 100. The maintenance of said pool 100 can in particular be automated.

[0121] The control unit 21, by controlling all the valves VI to V5 or V6 and possibly the pump 1, makes it possible to avoid handling errors, for example the complete closure of the two pipes 15, 17 while the pump 1 is in operation. Such a configuration causes a rise in pressure in the water inlet 3 and the pump 1 which can damage these elements.

[0122] The management of the maintenance of the pool 100 can alternatively be managed by a specialist who also has a terminal 23 allowing interaction with the control unit 21.

[0123] Maintenance can then be carried out in the form of a service, with either the sending of alerts to the user, or the sending of a maintenance agent when an intervention on the pool 100 or the maintenance device 200 is necessary (filling of maintenance product tanks, breakdown, sensor failure, etc.).

[0124] Maintenance of the pool 100 can then be carried out even in the absence of the user and continuously.

[0125] Furthermore, since the user is no longer in physical contact with the valves and other elements of the maintenance device 200, the risk of accidental electrocution is reduced.

Claims

1. Claims Water distribution device for maintaining a pond (100), in particular an artificial pond (100), comprising: - a water inlet (3) configured to be connected to a pump (3) pumping water from the basin (100), - a first (15) and a second pipe (17), in parallel with each other and connected to the water inlet (3) at one end, the first pipe (15) being configured to be connected to a water outlet (7) at the other end, and the second pipe (17) being configured to be connected to a discharge (5) opening into the basin (100), - two connectors (11, 13) for a filter (9), configured to be connected to a filter (9) filtering the water of the pool (100) when water flows through said filter (9) in a filtration direction and the circulation of the water in the opposite direction causing rinsing of the filter (9), a first connector (11) forming a filter inlet (9) being arranged on the first pipe (15), between the water inlet (3) and the water outlet (7), and a second connector (13) forming a filter outlet (9) being arranged on the second pipe (17), between the water inlet (3) and the discharge (5), - pilot-operated valves (VI, V2, V3, V4, V5, V6), and a control unit (21) configured to actuate said valves (VI, V2, V3, V4, V5, V6), and to pass, by actuating the valves, water pumped from the basin (100): * from the water inlet (3) to the connector (11) of the first pipe (15), and from the connector (13) of the second pipe (15) to the discharge in a filtration mode, * from the water inlet (3) to the filter connector (13) of the second pipe (17), and from the connector (13) to the water outlet in a washing mode, * from the water inlet (3) to the discharge (5) without passing through the filter (9) in a recirculation mode; characterized in that it further comprises a filter bypass line (19), which connects the first (15) and the second line (17) in parallel with the filter (9), and in that it comprises: - a first valve (VI) between the water inlet and the filter connector (11) of the first pipe (15), - a second valve (V2) between the filter connector (11) of the first pipe (15) and the filter bypass pipe (19), - a third valve (V3) between the water inlet (3) and the filter connector (13) of the second pipe (17), - a fourth valve (V4) at the filter connector (13) of the second pipe (17), - a fifth valve (V5) at the filter bypass pipe (19), - a sixth valve (V6) on the second pipe (17) between the filter bypass pipe (19) and the discharge (5).

2. Device according to claim 1 characterized in that the control unit (21) is configured to pass, by actuating the valves, water pumped from the artificial basin: * from the water inlet to the filter connector (11) of the first pipe (15), and from the filter connector (13) of the second pipe (17) to the water outlet (7) in a rinsing mode.

3. Device according to one of the preceding claims, characterized in that the control unit (21) is connected to a terminal (23) having an interface, comprising at least one switch, the actuation of which causes switching between different operating modes.

4. Device according to the preceding claim, characterized in that the control unit (21) is connected to an antenna (25), configured to connect the control unit (21) and the terminal (23), on which the switch is arranged.

5. Device according to claim 3 or 4, characterized in that the control unit (21) is connected to a clock (27), and in that the control unit (21) is programmable to automatically switch between different operating modes at predetermined times.

6. Device according to the preceding claim, characterized in that the control unit (21) is configured to switch between an automatic mode, in which the switching between different operating modes is automatic at predetermined times, and a manual operating mode, in which the switching between different operating modes are managed by the user operating the switch.

7. Device according to one of the preceding claims, characterized in that the control unit (21) is configured to execute switching cycles between the different operating modes, with: - operation in filtration mode (305) for a first duration, then - operation in washing mode (307) for a second duration.

8. Device according to claims 7 and 2, characterized in that the control unit is configured to execute cycles further comprising operation in rinsing mode (309) for a third duration after each operation in washing mode (307) for a second duration.