The present invention relates to a water distribution system with hygienisation capacity. According to a first aspect, the present invention describes a water distribution system (I) comprising a water supply, a heating source (IO0) or a point of inflow of externally heated water, at least one sensor measuring water quality, a flow path for water with a user outflow UO, and a control unit for operation of the water distribution system (1), said at least one sensor measuring water quality being connected to the control unit, wherein the water distribution system (I) comprises tubing in a tubing system where at least one portion of the tubing system in the water distribution system (1) comprises a tubing portion which is made of a plastic material comprising silver and/or zinc to provide an inner anti-biofilm of that tubing portion.

A water use management system may be installed in a setting that contains a primary infrastructure for water use to provide an alternate, modular infrastructure for water use. Fresh water used at various points of use, such as a shower or sink, may be modified by a point of use water conditioner. Water may be modified at the point of use based upon pre-configured routines or manual user selections. Treatments performed on the water may include quality treatments, such as modifying the pH or mineral content, and may also include experience treatments, such as the addition of scents, colors, carbonation, or health and beauty supplements. Additives used during treatment are provided in cartridges that may be inserted and removed from the water conditioner. Cartridges may self-identify when inserted, to aid in compatibility and usability determinations and recycling/recertification processes.

An indirect evaporative cooling system for cooling a space adjacent to or containing an ablution bay is described. The indirect evaporative cooling system includes a greywater source from the ablution bay and evaporative cooler apparatus located above the space to be cooled in a dome shaped housing. The evaporative cooler apparatus includes a wet channel, at least one spray nozzle, and a dry channel. The at least one spray nozzle is located at the top of the evaporative cooler apparatus and is fluidly connected to the greywater source and the wet channel. The wet channel is located directly above the dry channel. A first side of the dry channel is connected to a first opening with a fan and outside air.

Disclosed is a method for water saving by retrofitting an institutional plumbing fixture having a combination of an integral lavatory basin and a toilet bowel integrally attached thereto by inserting into the fixture a urinal-type collection receptacle having a water inlet opening on its top side and a water outlet opening on its bottom side; and fluidly interposing the receptacle via the inlet and outlet openings between the lavatory drain pipe and the drain trap provided for the plumbing fixture. Also disclosed is an institutional plumbing fixture retrofit for water saving, and a retrofit urinal-type receptacle.

A passive water-and-energy saving washing unit is provided having a first shower sub-assembly and a second shower sub-assembly. The first shower sub-assembly comprises a first water reservoir, for holding a predetermined volume of water for washing at least part of a body, a water heater, for heating water for the first water reservoir, and a shower head, in fluid communication with the first water reservoir for receiving water from the reservoir and providing water spray on the body part. The second shower sub-assembly comprises a second, grey water reservoir, for collecting the sprayed water from the first shower head and running off the body part, a shower head, in fluid communication with the second water reservoir for receiving the water from the reservoir and providing water spray on the body part, and a water pump, for pumping the water from the second water reservoir to the second shower head. A corresponding kit and a method for washing at least part of body with a washing unit are also provided.

A sanitary device (1), comprising: at least one dispenser (2, 3) for a liquid; a basin (4) having a waste (5) for the liquid, and a first thermostat (6) to which at least part of the liquid discharged via the waste (5) can be supplied as circulating liquid, wherein the first thermostat (6) can be used to mix warm water or cold water to the circulating liquid to form a temperature-controlled circulating liquid, and wherein the temperature-controlled circulating liquid can be supplied to the at least one dispenser (2, 3).

A water control system for the cold and hot water plumbing installations, for consumption or heating and gray water in a home, premises or building increases water and/or energy efficiency of the installation by means of a method of operation which reduces the water consumption or energy used in its consumption and treatment. The method includes detecting and controlling water leaks, avoiding consumption of cold water which is produced while waiting for hot water to come out, reducing the energy required for consuming hot water, reducing consumption of water when it is used for the toilet together with a soap, foam or similar, measuring and controlling the proliferation of Legionella bacteria and other microorganisms, cleaning pipes and in general monitoring the control variables of a plumbing installation and its visualization and interaction by a user or a smart and autonomous IT system.

Method for operating a water system (10). The water system (10) comprises a fresh water subsystem (11) being configured to provide fresh water to water consumers (13, 14, 15, 16, 17, 19), wherein first water consumers (13, 14) generate black water as waste water, and wherein second water consumers (15, 16, 17, 18, 19) generate grey water as waste water. The water system (10) comprises a waste water subsystem (12) being configured to receive the waste water from the water consumers (13, 14, 15, 16, 17, 19). The waste water sub system (12) comprises a waste water diverter (23) being configured to provide in a black water status of the waste water diverter (23) waste water to a drain (24) thereby treating waste water as black water, and provide in a grey water status of the waste water diverter (23) waste water to a grey water tank (22) thereby treating waste water as grey water. The method comprises the following steps: Detect by a fresh water controller (26) being installed in the fresh water subsystem (11) a fresh water consumption in the fresh water subsystem (11) and provide a respective first output signal to a grey water controller (25). Determine by the grey water controller (25) on basis of the first output signal provided by the fresh water controller (26) a control signal for the waste water diverter (23) to switch the same either into the black water status or into the grey water status.

The present invention relates to a hair wash station. The hair wash station comprises a top sink configured to wash hair of a person, wherein the top sink comprising a water supply to provide water, and a bottom sink arranged at a lower level relative to the top sink, wherein the bottom sink comprising a drain for draining water from the bottom sink. The hair wash station further comprise a guiding passage connected to the top sink and configured such that water from the top sink flows along the guiding passage and into the bottom sink.

A safety device of a recirculating-water utilization system to be constructed in a specific area includes: at least one of a circulating-water monitoring unit configured to monitor a water quality of circulating water purified by a purifying unit, or a treatment-vessel monitoring unit configured to detect abnormality of treatment vessels constituting the purifying unit.