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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.
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.
The lighter part of a blend needs to spread into the background, while the darker part needs to be choked. If a trap over the full length of the blend is needed, this produces a visible ‘staircase’ effect. The solution is to use a sliding trap: a trap that gradually changes both color and position. The trap can slide all the way.
A gully emptier (colloquially: "gully sucker") is a type of specialized tank truck with suction gear which can suck wastewater and mud and sludge out of hollows such as the hollows below drain grids in street gutters and carry it to a suitable disposal point. It needs to be able to suck out and pump through into its tank any road grit and ...
Cone section (black), base section (below the cone section), and stacks of grade adjustment rings of various sizes stored at a manufacturing plant. The purpose of the cone section is to reduce the openings from large chamber sizes to small cover sizes. In a masonry manhole, the bricks form a corbel inward to reduce the opening to a desired size ...
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.
A standard widely use in the United States is: A112.1.2 Air Gaps in Plumbing Systems (For Plumbing Fixtures and Water-Connected Receptors) In the United Kingdom, legislation is by statutory instrument and varies by country, but includes Water Supply (Water Quality) Regulations 2016 and Water Supply (Water Quality) Regulations (Wales).
The relatively grease-free water is then fed into the normal septic system.The food solids at the bottom and floating oil and grease must be periodically removed in a manner similar to septic tank pumping. [11] A traditional grease trap is not a food disposal unit. Unfinished food must be scraped into the garbage or food recycling bin.