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However, the original 1906 design has proven so reliable that as of 2012, parts are still available to repair any flushometer ever made. [1] Contemporary (2023) Sloan motion sensor flushometer. In addition to its flush valves based on diaphragm technology, Sloan also introduced piston-type flushometers, including the Crown and the GEM 2.
Valves stop (or regulate) the flow of liquids or gases. They are categorized by application, such as isolation, throttling, and non-return. Isolation valves temporarily disconnect part of a piping system to allow maintenance or repair, for example. Isolation valves are typically left in either a fully open or closed position.
Galvanized steel potable water supply and distribution pipes are commonly found with nominal pipe sizes from 3 ⁄ 8 inch (9.5 mm) to 2 inches (51 mm). It is rarely used today for new construction residential plumbing.
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.
Most of the solids are removed by the septic tanks, so the treatment plant can be much smaller than a typical plant. In addition, because of the vast reduction in solid waste, a pumping system, rather than a gravity system, can be used to move the wastewater. The pipes have small diameters, typically 1.5 to 4 inches (4 to 10 cm).
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.