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Most water closets, bidets, and many urinals have the trap integral with the fixture itself. The visible water surface in a toilet is the top of the trap's water seal. Each fixture drain, with exceptions, must be vented so that negative air pressure in the drain cannot siphon the trap dry, to prevent positive air pressure in the sewer from ...
Designated as an American National Standard, the Uniform Plumbing Code (UPC) is a model code developed by the International Association of Plumbing and Mechanical Officials to govern the installation and inspection of plumbing systems as a means of promoting the public's health, safety and welfare.
Standpipe (street), an external freestanding pipe to provide running water in areas with no other water supply; Standpipe water towers; Standpipe (plumbing), a vertical pipe attached to a p-trap for rapid high-volume wastewater drainage such as from washing machines; Standpipe piezometer, a device that monitors groundwater levels through a borehole
In plumbing, a trap is a U-shaped portion of pipe designed to trap liquid or gas to prevent unwanted flow; most notably sewer gases from entering buildings while allowing waste materials to pass through. In oil refineries, traps are used to prevent hydrocarbons and other dangerous gases and chemical fumes from escaping through drains.
Different washing machine models vary widely in their use of water, detergent, and energy. The energy required for heating is large compared to that used by lighting, electric motors, and electronic devices. Because of their use of hot water, washing machines are among the largest overall consumers of energy in a typical modern home.
Usually, each floor drain is connected to a trap, to prevent sewer gases from escaping into indoors spaces. A floor sink is a type of floor drain primarily used as an indirect waste receptor. It is generally deeper than a standard floor drain and can have a full or partial grate, or no grate as required to accommodate the indirect waste pipes.
In areas where the air or surface ground temperatures reach below freezing point for part or all of the year, some standpipes are equipped with a feature whereby the same mechanism that valves the water for the bib also uncovers a drainage hole (the 'weep hole') at the base of the pipe when the standpipe is closed, ensuring that the column of water drains into the ground rather than remaining ...
Old water pipe, remnant of the Machine de Marly near Versailles, France. Lead was the favoured material for water pipes for many centuries because its malleability made it practical to work into the desired shape. Such use was so common that the word "plumbing" derives from plumbum, the Latin word for lead.