The medical toilet may include a seat, lid, and bowl as does a traditional toilet. It also includes one or more acoustic transducers. The acoustic transducers may be located on the seat where they may measure bone density in a user's pelvis or femur. The acoustic transducers may be located on the lid or on a belt which wraps around the user. These acoustic transducers may collect data relating to a user's heart, lungs, liver, bowel, or other internal organs. The medical toilet may include a handrail with an acoustic transducer which measures the bone density in the user's wrist, radius, or ulna. A controller associated with the medical toilet may store algorithms for analyzing the data collected by the acoustic transducers. The controller may perform machine learning to improve the analyses and may calculate trends in repeated measurements taken from the same user or a population of users.

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.

A grey water recycling assembly for recycling grey water from a sink for filling a tank on a toilet includes a hose that is fluidly coupled to a drain of a sink for capturing grey water from the sink. The hose is fluidly coupled to a tank of a toilet. Additionally, the hose is oriented to angle downwardly between the drain and the tank to gravity feed the grey water into the tank. In this way the hose directs the grey water into the tank of the toilet for filling the tank of the toilet with recycled water. The hose is comprised of a flexible material thereby facilitating the hose to be routed in a preferred route between the drain of the sink and the tank of the toilet.

A method of flushing a toilet that includes opening a first valve to introduce a first supply of grey water into a passage to prime a siphon; opening a second valve to introduce a second supply of water into a bowl from a tank, the bowl having an outlet that is in fluid communication with an inlet of the passage; closing the first valve to shut off the first supply of water; evacuating the contents of the bowl through an outlet of the passage by way of the siphon generated by the introduction of the first supply of water and the introduction of the second supply of water; and closing the second valve to shut off the second supply of water.

A toilet tank washbasin and faucet system that rests on top of a toilet tank is described by way of example. The faucet dispenses water intended to fill the toilet tank over a drain that leads into the toilet tank. The faucet is useful to a person for washing their hands with the water dispensed from the faucet to advantageously provide a second use of the water before flushing down the toilet. Generally described is a basin that sits atop an open toilet tank. A faucet having a nozzle end is attached to the basin via a keyed member that a) positions the nozzle end over a drain in the basin and b) prevents rotation of the faucet when attached to the basin, the drain leads into the toilet tank. Water is provided to a flexible tube that attaches to a bowl refill tube. The flexible tube extends through the faucet and terminates essentially at the nozzle end.

A toilet comprising a tank configured to hold a first supply of water therein; a bowl having an inlet and an outlet, wherein the inlet is in fluid communication with the tank, such that the bowl is configured to receive the first supply of water; and a passage having a first end, a second end, and an inlet opening provided between the first end and the second end, wherein the first end is in fluid communication with the outlet of the bowl, wherein the second end is configured to be in fluid communication with a drain pipe, and wherein the passage is configured to receive a second supply of water through the inlet opening during a flush cycle.

A water conservation system for use in a building comprises a water supply pipe, water-consuming equipment, a water-consuming equipment outlet pipe, an intermediate water inlet pipe, an intermediate water collection pipe, an intermediate water outlet pipe, an intermediate water outlet valve, an intermediate water overflow pipe, and a sewage pipe. The intermediate water collection pipe is installed in the building, and a water inlet and outlet of the intermediate water collection pipe is pre-arranged at every floor. The intermediate water outlet pipe and the intermediate water inlet pipe communicates with the water inlets and outlets of the intermediate water collection pipe, respectively. The intermediate water outlet pipe communicates with a toilet water tank. A first check valve is disposed on the intermediate water inlet pipe.

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.