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  2. Sanitary manhole - Wikipedia

    en.wikipedia.org/wiki/Sanitary_manhole

    When underground sewer lines are laid close to the ground level (this may be at the depths of less than 0.75 metres (2.5 ft) or 2 metres (6.6 ft) depending on local regulations), an inspection chamber is used as an access point instead. [6] [7] Inspection chambers allow access to sewer lines without requiring a person to get in them. [6]

  3. Gravity sewer - Wikipedia

    en.wikipedia.org/wiki/Gravity_sewer

    A gravity sewer is a conduit utilizing the energy resulting from a difference in elevation to remove unwanted water. The term sewer implies removal of sewage or surface runoff rather than water intended for use; [1] and the term gravity excludes water movement induced through force mains or vacuum sewers. Most sewers are gravity sewers because ...

  4. Effluent sewer - Wikipedia

    en.wikipedia.org/wiki/Effluent_sewer

    Effluent sewer systems are a much less common sewage disposal method than gravity sewer systems that use gravity, as well as pumping where needed, to send raw sewage and other wastewater straight from consumers to a sewage treatment plant. There are two main types of gravity sewers, sanitary and combined. Sanitary sewers only treat the ...

  5. Mirror Lake (Ohio) - Wikipedia

    en.wikipedia.org/wiki/Mirror_Lake_(Ohio)

    The spring dried up in 1891 when the city of Columbus struck the source of the spring while installing a sewer line through campus. [3] Between 1891 and 1972, the lake was filled using water from the Olentangy River. The water source was subsequently provided by the city of Columbus municipal water supply, at a new location on campus near the ...

  6. Sanitary sewer - Wikipedia

    en.wikipedia.org/wiki/Sanitary_sewer

    The manholes are used for access to the sewer pipes for inspection and maintenance, and as a means to vent sewer gases. They also facilitate vertical and horizontal angles in otherwise straight pipelines. [4] Pipes conveying sewage from an individual building to a common gravity sewer line are called laterals.

  7. Northeast Ohio Regional Sewer District - Wikipedia

    en.wikipedia.org/wiki/Northeast_Ohio_Regional...

    The Northeast Ohio Regional Sewer District, abbreviated NEORSD, is a public utility district serving most of Cuyahoga County and a portion of Summit and Lorain Counties in the U.S. state of Ohio. [1] The district manages three wastewater treatment facilities and all of the interceptor sewers in the service area.

  8. Drain-waste-vent system - Wikipedia

    en.wikipedia.org/wiki/Drain-waste-vent_system

    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.

  9. Sewerage - Wikipedia

    en.wikipedia.org/wiki/Sewerage

    Map of London sewer network, late 19th century Sewerage (or sewage system ) is the infrastructure that conveys sewage or surface runoff ( stormwater , meltwater , rainwater ) using sewers. It encompasses components such as receiving drains , manholes , pumping stations , storm overflows, and screening chambers of the combined sewer or sanitary ...

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