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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. Reduced pressure zone device - Wikipedia

    en.wikipedia.org/wiki/Reduced_pressure_zone_device

    Backflow preventers are categorized into three groupings: Assembly, Device or Method. With the exception of elimination, these are the only ways one can control backflow from taking place. The eight named backflow assemblies all have two resilient seated isolation/shut off valves with properly located test ports.

  4. 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.

  5. 5 Family Members Found Dead Inside Utah Home, 17-Year ... - AOL

    www.aol.com/5-family-members-found-dead...

    Police in Utah are investigating the deaths of five people from the same family who were found dead inside their home. The West Valley City Police Department shared on X (formerly known as Twitter ...

  6. 9 Pizza Chains That Make Their Dough Fresh In-House - AOL

    www.aol.com/9-pizza-chains-dough-fresh-170000604...

    However, Domino’s, the world’s largest pizza chain with over 6,692 locations in the U.S., runs one of the country's most efficient pizza dough supply chains, with 18 supply centers producing ...

  7. WELL Building Standard - Wikipedia

    en.wikipedia.org/wiki/WELL_Building_Standard

    In 2014, Green Business Certification Inc. began to provide third-party certification for WELL. By 2024, WELL is being used across more than 5 billion square feet of space in 130 countries, supporting an estimated 25 million occupants in nearly 74,000 commercial and residential locations. [2]

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