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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.
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To further illustrate the air gap, consider what could happen if the air gap were eliminated by attaching a hose to the faucet and lowering the hose into a sink full of contaminated water. Under the right conditions (if the water supply loses pressure and the sink is higher than the point at which the water supply enters the house, for instance ...
A Buchan trap (alternative names: Bristol interceptor, [1] interceptor trap and disconnecting trap) is a device fitted in a domestic sewer pipe to prevent odours entering the pipe from the public sewer [2] and permeating the house, a common problem before individual plumbing fittings were separately trapped.
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A trap primer (or trap seal primer) is a plumbing device or valve that adds water to traps.The water seals in traps are needed to prevent sewer gases from entering buildings, but because this water is exposed to the air, it is subject to evaporation over time in infrequently used floor drains, leading to the release of sewer gas into the environment.
The TRAP – BATH split is a vowel split that occurs mainly in Southern England English (including Received Pronunciation), Australian English, New Zealand English, Indian English, South African English and to a lesser extent in some Welsh English as well as older Northeastern New England English by which the Early Modern English phoneme /æ/ was lengthened in certain environments and ...
The cage includes a tub of water and a pheasant carcass, for the benefit of trapped birds. The Larsen trap is legal to use in the United Kingdom under general licence. [ 1 ] It is the most widely used magpie population control method amongst gamekeepers, magpies are also controlled by conservationists. [ 4 ]