The present invention provides a leakage proof, water saving flushing device for effectively managing water resources through an interlocking mechanical assembly. The said interlocking mechanical assembly is made up from a water channel gate arm having a distal end and a gate end, and a floating air pocket arm having a floating air pocket end and a distal end. Wherein, the distal end of the said floating air pocket arm is placed perpendicularly against the said distal end of the said water channel gate arm and provides an interlocking mechanism. The said interlocking mechanical assembly also comprises an operating element adapted for providing a push force to an elongated connecting arm, wherein the said elongated connecting arm provides a push force to unlock the said interlocking mechanical assembly.

This specification describes an intake filter for use, for example, in a system that collects greywater from baths or showers for re-use in toilet flushing. The intake filter provides essentially dead-end filtration. An influent by-pass may be provided, but the filter is cleaned as required to reduce use of the by-pass. Cleaning is performed when permeability of the filter declines. An upstream sensor may be used to detect the permeability of the filter. In one cleaning method, flowing water, optionally with air, is used to backwash the filter. The impulse of the flowing water also moves one or more valves to direct backwash water to a sanitary drain. For example, pumped effluent may impinge against a first flap to close an effluent drain, the first flap being mechanically linked to open a flap covering the sanitary drain.

A toilet that includes a bowl having a sump, a passageway, a fluid conduit and a valve. The passageway includes an entrance fluidly connected to the sump, an outlet, a dam located between the entrance and the outlet of the passageway, and an inlet located between the dam and the outlet of the passageway. The fluid conduit configured to supply a volume of water into the passageway through the inlet. The valve located between the inlet and the outlet of the passageway, wherein the valve is configured to retain the volume of water in a closed position prior to a flush cycle to affect a siphon during the flush cycle.

A bathroom system includes a shower system, a sink system, a gray water tank, a toilet, a first conduit, and a second conduit. The shower system includes a drain ring configured to collect gray water from the shower system. The gray water tank includes an internal filtration system and is configured to filter and store gray water. The gray water tank is configured to introduce a chemical into the gray water and is configured to draw electrical power from a power supply. The first conduit is coupled to the gray water, it connects the shower system and the gray water tank, and it is configured to transfer the gray water from the drain ring to the gray water tank. The second conduit is configured to transfer the gray water from the gray water tank to the toilet to provide water for flushing.

A system for preventing overflow of a toilet includes a sensor, a processor and an actuator. The sensor senses a parameter caused by fluid dynamics within the toilet during a flush cycle. The parameter may involve vibration, sound, pressure, fluid flow rate or other detectible characteristics of the toilet. The processor uses information regarding the parameter that is gathered by the sensor to evaluate the condition of the flush cycle to determine if an impeded flush condition exists. In the event of an impeded flush condition, the processor directs the actuator to close a valve, which may be the toilet flapper valve in some embodiments. Also disclosed are methods for preventing toilet overflow, detecting an impeded flush condition and calibrating the system.

A system for preventing overflow of a toilet includes a sensor, a processor and an actuator. The sensor senses a parameter caused by fluid dynamics within the toilet during a flush cycle. The parameter may involve vibration, sound, pressure, fluid flow rate or other detectible characteristics of the toilet. The processor uses information regarding the parameter that is gathered by the sensor to evaluate the condition of the flush cycle to determine if an impeded flush condition exists. In the event of an impeded flush condition, the processor directs the actuator to close a valve, which may be the toilet flapper valve in some embodiments. Also disclosed are methods for preventing toilet overflow, detecting an impeded flush condition and calibrating the system.

This specification describes an intake filter for use, for example, in a system that collects greywater from baths or showers for re-use in toilet flushing. The intake filter provides essentially dead-end filtration. An influent by-pass may be provided, but the filter is cleaned as required to reduce use of the by-pass. Cleaning is performed when permeability of the filter declines. An upstream sensor may be used to detect the permeability of the filter. In one cleaning method, flowing water, optionally with air, is used to backwash the filter. The impulse of the flowing water also moves one or more valves to direct backwash water to a sanitary drain. For example, pumped effluent may impinge against a first flap to close an effluent drain, the first flap being mechanically linked to open a flap covering the sanitary drain.

A flush valve has a valve body having a flushing tube, a power generating set, and a solenoid valve assembly. The power generating set is disposed within the flushing tube and has a turbine capable of rotating, an induction coil, and a magnet inserted through the induction coil and capable of simultaneously rotating with the water turbine. The solenoid valve assembly has an assembling mount, a solenoid valve assembled to the assembling mount, and a power supply electrically connected to both the induction coil and the solenoid valve. A first reserving space is formed between the assembling mount and a relief assembly. A second reserving space is formed between the solenoid valve and the assembling mount and communicates with the first reserving space. The solenoid valve optionally prevents the first reserving space and the second reserving space from communicating with each other.

A water recycling system embodying a tank used for collecting and recycling bathroom shower warm up water for other household needs. The collection tank is fluidly connected to the shower head via an engaged diverter valve by way of a first conduit. The collection tank may provide a second conduit and valve system operatively associated with the collected warm up water to the toilet or other household water needs.

Provided is a grey water rinse toilet including a first reservoir configured to store a first water supply, a second reservoir configured to store a second water supply, a bowl having a first inlet fluidly connected the first reservoir and a second inlet fluidly connected to the second reservoir, a first valve disposed in the first inlet and configured to control a flow of the first water supply from the first reservoir to the bowl, and a second valve disposed in the second inlet and configured to control a flow of the second water supply from the second reservoir to the bowl. The flow of the first water supply may be configured to rinse an inner surface of the bowl.