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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. Watts Water Technologies - Wikipedia

    en.wikipedia.org/wiki/Watts_Water_Technologies

    Watts has joined the S&P 400 index. [8] [9] Robert J. Pagano is the president, director and chief executive officer. [1] The company is listed on the NYSE with the symbol WTS. [10] The company has Class A shares and Class B shares of common stock. [11] The company was formerly known as Watts Industries Inc. [12] A Watts pressure release valve

  4. Reduced pressure zone device - Wikipedia

    en.wikipedia.org/wiki/Reduced_pressure_zone_device

    RPZDs may also be known as reduced pressure principle (RP), reduced pressure principle backflow prevention devices, [1] [2] reduced pressure zone assemblies (RPZA), [3] or reduced pressure principle assembly (RPPA). [4] ASSE Standard 1013 - Reduced Pressure Backflow Assembly; ASSE Standard 1015 - Double Check Valve Assembly

  5. Double check valve - Wikipedia

    en.wikipedia.org/wiki/Double_check_valve

    A double check valve or double check assembly (DCA) is a backflow prevention device designed to protect water supplies from contamination. [1] It is different from the two-way check valves (sometimes erroneously referred to as double check valves) used in air brake systems on heavy trucks which select from the highest pressure source.

  6. Baseball-size hail hits Texas as 200,000 across the South ...

    www.aol.com/baseball-sized-hailstones-hit-texas...

    Almost 95,000 energy customers in Alabama were without power as of 7 a.m. ET, according to PowerOutage.us, as well as 57,000 in Mississippi and 50,000 in Florida.Georgia and North Carolina each ...

  7. 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.