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A flush toilet (also known as a flushing toilet, water closet (WC); see also toilet names) is a toilet that disposes of human waste (i.e., urine and feces) by collecting it in a bowl and then using the force of water to channel it ("flush" it) through a drainpipe to another location for treatment, either nearby or at a communal facility.
A narrow passageway leads from the main water supply into the pressure chamber. It is the narrowness of this passage that meters the flow by slowing repressurizing of the pressure chamber after the action of a flush. The diaphragm technology allows the flush valve to open and let water into the bowl. A main cylinder valve operates up and down.
The company was founded by William Elvis Sloan in Chicago, Illinois in 1906 with the introduction of the Royal flushometer, a valve to release a measured amount of water to flush a urinal or toilet. Initial sales were very poor: only a single Royal model flushometer was sold in 1906, and two in 1907.
US 2837111, Mueller, Paul G., "Ball cock valve mechanism", published 6 January 1955, issued 3 June 1958 ; hysterisis issue. "Such flush tank valves as now commonly used are closed against the pressure of water from a source of supply which pressure opposes the movement of the float under rising water level in the tank.
A vacuum breaker is a device that prevents water from being siphoned backward in a direction it is not desired to go. They are commonly placed on a bibcock valve or toilet or urinal flush valve, in which application they can prevent hose or drainage water from back-siphoning into the public drinking water system.
A dual flush toilet is a variation of the ... flush toilets that use a siphon valve operated ... standard is a reduced flush of 1.1 US gallons (4.2 L) and a full ...
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