Abstract: Apparatus (2) for saving water, which apparatus (2) comprises: (i) separator means (4) for separating water that is flowing from a water inlet (6) and that has not been interrupted in flow, from water that is flowing from the water inlet (6) and that has been interrupted in flow; (ii) first outlet means (8) for receiving water that has not been interrupted in flow; and (iii) second outlet means (10) for receiving the water that has been interrupted in flow, and the apparatus (2) being such that in use it permits the water received by the first outlet means (8) to be saved from flowing to waste.

Abstract: A fluid control device for a fluid supply includes a housing (31) defining a fluid supply channel (34) with a fluid inlet (35) for coupling to a fluid supply and a fluid outlet (36) for coupling to an appliance. The housing additionally defines a chamber (44) with an inlet (40) for coupling to an overflow and an outlet (41) for coupling to a drain. A valve (55) is located in the fluid supply channel (34) and is moveable from a first open position to a second closed position where fluid flow through the channel (34) is substantially restricted. An actuator (52) is provided in the chamber (44) and is moveable from a first position to a second position. The valve (55) and actuator (44) are magnetically coupled to one another such that movement of the actuator (44) from the first position to the second position causes the valve (55) to move from the open position to the closed position.

Abstract: A monitor embodiment, monitoring overflow levels in a bathtub, comprises an input water unit, including a control circuitry, coupled to a hot-cold water facet; a water level detection unit including telescopically joined tubes with a floatable lowest tube associated with an indicator, an uppermost tube fixed to the input unit, sensors attached to non-lowest tubes variably coupled. The sensors detect the indicator's position reaching a predetermined alarm or shutoff level, causing respective initiating an alarm signal, or terminating the input unit's water flow. Another embodiment additionally comprises an output water unit associated with the circuitry, incorporating a temperature sensor and a user preset-temperature selector. The output unit outlets cooled water from the bathtub, the input unit inlets hot water until the preset-temperature is reached, provided no alarm signal was issued. An additional sensor, incorporated in the input unit, allows adding the hot water when it's hotter than the bathtub water.

Abstract: An automatic liquid shut-off system for a vessel and having a valve in a liquid passageway to control the level of liquid in the vessel so as to prevent an overflow of the liquid. The shut-off system comprises a conduit extending exterior from one wall of the vessel and in liquid communication therewith. A float is disposed in the conduit, and a stem extends from the float co-axially with the conduit, and is affixed to the valve to actuate the valve to a closed position. When the liquid level in the vessel rises to an undesired level, and the liquid in the vessel therefore reaches a level approximately the level of the float, the liquid acting upon the float will actuate the valve to a closed position, thereby shutting off the liquid.

Abstract: An overflow device for a bathtub with an overflow inlet arranged for mounting in a conventional overflow hole of the bathtub and a valve connected between a water supply and a conventional bath tap. A spring can be used to change the valve from its open state to its closed state. A float and trigger lever can detect water that has entered the overflow inlet and trigger the device to change, using the stored spring energy, from a set state in which the valve is open to a triggered state in which the valve is closed. A manually operable resetting element can be operated by a user to replenish the spring with energy and return the device to the set state. The device can be permanently plumbed in and the bulk of the device can be hidden from view outside the bathtub.

Abstract: An overflow system is described for a water receptacle (22) such as bathtub, sink or washbasin having a water tap for connection to a water supply. The system includes sensing means, such as a float (14), for sensing an overflow condition of the receptacle, and a supply valve (65) responsive to the sensing means and arranged to close the water supply to the tap. The supply valve may be hydraulically controllable via a control port (68) thereof. A control valve (59) is provided between the water supply and the control port The control valve is responsive to the sensing means so that upon such an overflow condition it open and the pressure of the water supply is applied to close the supply valve. Thus, there is no need for a supply of electricity.

Abstract: A sewer relief valve assembly comprises a cylindrical sleeve dimensioned for insertion into a clean out which has an interior surface formed as a conduit and exterior threads adapted for mated engagement with the interior threads of the clean out. A valve means is disposed in the cylindrical sleeve which is displaceable from a closed position to an open position by pressurized fluid in the clean out. At least one perforated compartment is disposed inside the cylindrical sleeve which contains a water-soluble disinfectant composition. The valve means is displaceable by fluid pressure to the open position permitting discharge of the effluent through the clean out and the simultaneous release of the water-soluble disinfectant composition from the perforated compartment into the effluent. A water-soluble dye composition can also be included in the perforated compartment so that sewage overflow from the clean out is readily visible.

Abstract: An overflow system suitable for use in controlling the level of water in, for example, a bathtub (3) is described. The overflow system comprises a conduit attached to the overflow outlet (21) of the bathtub (3) and is arranged so that when the bathtub (3) is overfilled, any excessive flow rate of overflow water through the conduit (19) is detected. The excessive flow rate is detected by arranging for the outlet (25) of the conduit to have a smaller maximum flow rate than the inlet (23) of the conduit so that water backs up within the conduit during an excessive flow rate condition. The backed up water may be detected by a reed switch (31) in conjunction with a magnetic float (27) in order to actuate a solenoid valve (9) to prevent any more water from entering the bathtub (3).

Abstract: A water recycling device, wherein gray water from a bathroom sink is reused to flush a toilet. The device includes a gray water reservoir, means for sensing the level of water in the toilet tank, a pump to transfer water from the gray water reservoir to the toilet tank, and a mechanical means to stop the normal potable water supply from filling the toilet water tank as long as sufficient water is being supplied from the gray water reservoir. The mechanical means physically holds the float valve of the fresh water line closed by holding the float in the up position, unless there is no flow of gray water into the toilet's tank, in which case the float is released, allowing the normal potable water supply to fill the tank.

Abstract: A sewer relief valve (40) made out of a durable plastic material comprises: a raised head or float housing (52) that serves as a gripping means during it's removal and installation; said housing (52) has male threads (53) which circumference the lower vertical exterior of said float housing (52); said housing (52) surrounding a central passageway (58) through which a hydrostatic pressure relieving float (54) may pass unobstructed; a cap (50) attached to an upper portion of float (54) effectively sealing said central passageway (58) and cosmetically dressing up said float housing (52) of said sewer relief valve (40) to give it the appearance of a conventional raised head plug (28).

Abstract: A vent for relieving pressure in a sewage collection system for buildings characterized by a buoyant float-closure which will easily open in response to fluid pressure to permit escape of gas or liquid from the system upon the build-up in the system of minimum pressure in excess of atmospheric pressure. The float closure is mounted in a threaded plug which is adapted to replace the conventional clean-out plug on the exterior of the building.

Abstract: The overflow and drain fitting has a drain pipe (10), into which a closing plug (4), a float (3), as well as a mushroom-shaped plug (2) are inserted. The closing plug (4) can be lifted via bars (15), thus opening a partition (10b) between a riser channel (6b) and a return channel (6c) of a hidden riser pipe (6). With a sealing edge (2c) of a mushroom-shaped plug (2), the float (3) forms a check valve, which prevents water that may be contaminanted from returning into the basin (5). The closing plug (4), the float (3), and the mushroom-shaped plug (2) are loosely connected to each other via grasping arms (4b, 3b) and can be lifted out of the drain pipe (10) together as one unit to clean the fittings.