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  2. Drain-waste-vent system - Wikipedia

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

    In the U.S., every plumbing fixture must also be coupled to the system's vent piping. [1] Without a vent, negative pressure can slow the flow of water leaving the system, resulting in clogs, or cause siphonage to empty a trap. The high point of the vent system (the top of its "soil stack") must be open to the exterior at atmospheric pressure.

  3. Jeddo Tunnel - Wikipedia

    en.wikipedia.org/wiki/Jeddo_Tunnel

    The Jeddo Tunnel drains four large coal basins over an area of close to 33 square miles (85 km 2). It also drained the collieries of G.B. Markle & Company. [5] On average the tunnel drains 40,000 US gallons (150,000 L; 33,000 imp gal) of water each minute. [6] Sometimes the tunnel drains up to 100,000 gallons per minute. [7]

  4. Middletown, Dauphin County, Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Middletown,_Dauphin_County...

    Middletown was selected as the western terminus of the Union Canal, and it was named from its location halfway [5] between Lancaster and Carlisle, where an ascent exists to a low pass allowing easier wagon-era travel [6] among the barrier mountains of the Ridge-and-valley Appalachians giving access into north-central Maryland and the valley of ...

  5. Floor drain - Wikipedia

    en.wikipedia.org/wiki/Floor_drain

    Floor drain system in bathroom, Korea. A floor drain is a plumbing fixture that is installed in the floor of a structure, mainly designed to remove any standing water near it. They are usually round, but can also be square or rectangular. They usually range from 2 to 12 inches (5.1 to 30.5 cm); most are 4 inches (10 cm) in diameter.

  6. Drain (plumbing) - Wikipedia

    en.wikipedia.org/wiki/Drain_(plumbing)

    Pool drain vortex as viewed from above the water at Grange Park wading pool Underwater view of drain, showing vortex-formation phenomenon. A drain is the primary vessel or conduit for unwanted water or waste liquids to flow away, either to a more useful area, funnelled into a receptacle, or run into sewers or stormwater mains as waste discharge to be released or processed.

  7. Middletown, Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Middletown,_Pennsylvania

    Middletown is the name of more than one location in the U.S. state of Pennsylvania: Middletown, Dauphin County, Pennsylvania of the Harrisburg metropolitan area, zip code 17057 Middletown (Amtrak station) Middletown, Northampton County, Pennsylvania, zip code 18017; Middletown Township, Bucks County, Pennsylvania, zip code 19047

  8. AOL Mail

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Middletown Township, Pennsylvania - Wikipedia

    en.wikipedia.org/wiki/Middletown_Township...

    Middletown Township is the name of some places in the U.S. state of Pennsylvania: Middletown Township, Bucks County, Pennsylvania Middletown Township, Delaware County, Pennsylvania