Flush toilet is a toilet that disposes of human waste by using the force of water to flush it through a drainpipe to another location for treatment, either nearby or at a communal facility, thus maintaining a separation between humans and their waste.
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The opposite of a flush toilet is a dry toilet, which uses no water for flushing.
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Typical flush toilet is a fixed, vitreous ceramic bowl which is connected to a drain.
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Typical Flush toilet has a tank fixed above the bowl which contains a fixed volume of water, and two devices.
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The toilet can be connected to one or two pits, in which case it is called a "pour flush pit latrine" or a "twin pit pour flush pit latrine".
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Vacuum toilet is a flush toilet that is connected to a vacuum sewer system, and removes waste by suction.
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Siphonic Flush toilet, called "siphon jet" and "siphon wash", is perhaps the most popular design in North America for residential and light commercial Flush toilet installations.
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The water in the Flush toilet bowl is connected to the drain by a drainpipe shaped like an extended "S" which curves up behind the bowl and down to the drain.
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At the top of the toilet bowl is a rim with many angled drain holes that are fed from the tank, which fill, rinse, and induce swirling in the bowl when it is flushed.
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The Flush toilet then gives its characteristic gurgle as the siphonic action ceases and no more water flows out of the Flush toilet.
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Double trap siphonic toilet is a less common type that is exceptionally quiet when flushed.
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Examples of this type of Flush toilet can be found in Austria, the Czech Republic, Germany, Hungary, the Netherlands, and some regions of Poland, although it is becoming less common.
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Usage of this type of Flush toilet is permitted only while the train is moving, and outside of major cities.
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Flush toilet installed one for his godmother Queen Elizabeth I at Richmond Palace.
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Flush toilet's design had a sliding valve in the bowl outlet above the trap.
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Flush toilet found that the current model being installed in London houses had a tendency to freeze in cold weather.
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Flush toilet opened the first underground convenience at the Royal Exchange in 1854.
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Flush toilet received a patent in 1852 for an improved construction of water-closet, in which the pan and trap were constructed in the same piece, and so formed that there was always a small quantity of water retained in the pan itself, in addition to that in the trap which forms the water-joint.
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Flush toilet improved the construction of valves, drain traps, forcing pumps and pump-barrels.
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The modern pedestal "flush-down" toilet was demonstrated by Frederick Humpherson of the Beaufort Works, Chelsea, England in 1885.
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Flush toilet was in the forefront of the industry in the late 19th century, and held nine patents, three of them for water closet improvements such as the floating ballcock.
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The bowl plus rim is then inverted, and the Flush toilet bowl is set upside down on the top rim mold to hold the pieces together as they dry.
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