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  2. Backflow prevention device - Wikipedia

    en.wikipedia.org/wiki/Backflow_prevention_device

    Backflow prevention device. The simplest, most reliable way to provide backflow prevention is to provide an air gap.An air gap is simply an open vertical space between any device that connects to a plumbing system (like a valve or faucet) and any place where contaminated water can collect or pool.

  3. Air gap (plumbing) - Wikipedia

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

    This arrangement prevents any contaminants in the sink from entering into the potable water system by siphonage; this is the simplest form of backflow prevention. A common use of the term "air gap" in domestic plumbing refers to a specialized fixture that provides backflow prevention for an installed dishwasher. This "air gap" is visible above ...

  4. Coppell, Texas - Wikipedia

    en.wikipedia.org/wiki/Coppell,_Texas

    George Coppell. The Coppell area was settled by German and French immigrants in the 1840s. Members of the Peters Colony also settled here in the 1840s. [8] Originally named Gibbs Station, after Barnett Gibbs (one of Texas's first lieutenant governors), the town was renamed in 1892 for George Coppell, a New York banker, who was born in Liverpool, England and probably moved to the United States ...

  5. Backflow - Wikipedia

    en.wikipedia.org/wiki/Backflow

    Backflow is a term in plumbing for an unwanted flow of water in the reverse direction. [1] It can be a serious health risk for the contamination of potable water supplies with foul water . In the most obvious case, a toilet flush cistern and its water supply must be isolated from the toilet bowl.

  6. Coppell - Wikipedia

    en.wikipedia.org/wiki/Coppell

    Coppell may refer to: Coppell, Ontario; Coppell, Texas. Coppell High School; Harry Coppell (born 1996), English pole vaulter; Steve Coppell (born 1955), English ...

  7. Coppell Independent School District - Wikipedia

    en.wikipedia.org/wiki/Coppell_Independent_School...

    The district was created as Coppell Independent School District by a vote of the local citizenry in 1959. In 1927, Dallas County Schools had acquired 6 acres (24,000 m 2) of land for $900 upon which to build Pinkerton Elementary, the only campus to serve Coppell children attending kindergarten through the eighth grade.

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