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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.
Construction of the interceptor system required 318 million bricks, 2.7 × 10 6 cubic metres (9.5 × 10 7 cu ft) of excavated earth and 670,000 cubic metres (24,000,000 cu ft) of concrete. [5] The innovative use of Portland cement strengthened the tunnels, which were in good order 150 years later.
A force main or rising main [8] is a pumped sewer that may be necessary where gravity sewers serve areas at lower elevations than the sewage treatment plant, or distant areas at similar elevations. A lift station is a sewer sump that lifts accumulated sewage to a higher elevation.
That pollution led the U.S. EPA to mandate major upgrades to the city's wastewater system. Requirements included building interceptor tunnels to retain the combined sewage and stormwater for ...
A sanitary manhole (sewer manhole, [1] sanitary sewer manhole [2] or sewer maintenance hole [3]) is a manhole that is used as an access point for maintenance and inspection of an underground sanitary sewer system. Sanitary manholes are sometimes used as vents to prevent the buildup of pressurized sewage gas. [4]
Atwood Regional Water and Sewer District (Carroll County) will receive a $335,000 grant to replace pump station No. 125. The existing pump station is more than 20 years old and has exceeded its ...
Map of Seattle sewer districts, 1894. The main part of such a system is made up of large pipes (i.e. the sewers, or "sanitary sewers") that convey the sewage from the point of production to the point of treatment or discharge. Sewers under construction in Ystad, Sweden. Types of sanitary sewer systems that all usually are gravity sewers include:
A sewer pipe is normally at neutral air pressure compared to the surrounding atmosphere.When a column of waste water flows through a pipe, it compresses air ahead of it in the system, creating a positive pressure that must be released so it does not push back on the waste stream and downstream traps, slow drainage, and induce potential clogs.