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  2. Sanitary sewer - Wikipedia

    en.wikipedia.org/wiki/Sanitary_sewer

    A manhole cover for a sanitary sewer access point. View looking down into an open manhole showing two converging sanitary sewer lines. The larger line enters from the right and changes direction within the manhole to exit from the top of the photo. A smaller line enters from the bottom of the photo under the access steps.

  3. Packaged metering manhole - Wikipedia

    en.wikipedia.org/wiki/Packaged_Metering_Manhole

    A H-20 highway loading packaged metering manhole during installation Packaged metering manholes (PMMs) are an outgrowth of the fiberglass manholes developed in the 1960s. Packaged metering manhole factories integrate a primary device (typically a flume [ 1 ] or weir [ 2 ] ) into a fiberglass manhole.

  4. Sanitary manhole - Wikipedia

    en.wikipedia.org/wiki/Sanitary_manhole

    A sanitary manhole under construction. 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 ...

  5. Plumber - Wikipedia

    en.wikipedia.org/wiki/Plumber

    Plumber exiting a sewer via a manhole. Years of training and/or experience are needed to become a skilled plumber; some jurisdictions also require that plumbers be licensed. Common plumbing tasks and skills include: Reading drawings and specifications, to determine the layout of water supply, waste, and venting systems

  6. Man tumbles 20 feet down manhole and gets stuck for an hour ...

    www.aol.com/man-tumbles-20-feet-down-134745173.html

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  7. Manhole - Wikipedia

    en.wikipedia.org/wiki/Manhole

    PMG manholes in a city street, Perth, Western Australia Manhole being used to access sewer Installation of a fiber-optic manhole in Brooklyn, New York An uncovered manhole in Beirut, Lebanon. A manhole (utility hole, maintenance hole, [1] or sewer hole) is an opening to a confined space such as a shaft, utility vault, or large vessel.

  8. Manhole cover - Wikipedia

    en.wikipedia.org/wiki/Manhole_cover

    A round manhole and its cover. A manhole cover is a removable plate forming the lid over the opening of a manhole, an opening large enough for a person to pass through that is used as an access point for an underground vault or pipe. It is designed to prevent anyone or anything from falling in, and to keep out unauthorized persons and material.

  9. EJ (company) - Wikipedia

    en.wikipedia.org/wiki/EJ_(company)

    EJ Group, formerly East Jordan Iron Works, is an American manufacturer of iron products, headquartered in East Jordan, Michigan.The company manufactures and distributes iron construction castings (Municipal castings), fabricated products, composite products, water distribution solutions, and other infrastructure access products for water, sewer, drainage, telecommunications, and utility ...