In a piping system, water is intended to flow in one direction: from the supply to the point of delivery. Danger lurks when the pressure in a system exceeds the pressure of the supply. Anytime pressure in a system drops, even momentarily, the system is subject to backflow, back pressure, or back siphonage, opening the door to contamination. This can happen all too easily when a water main is shut off, a water main is broken, or water demand surges in a specific area. Ultimately, rigorous ...

Register For Free or Sign In to Access

"Backflow Prevention: The Last Line of Defense for Plumbing-System Safety" is FREE to access as a registered user on HPAC.com. Why register for HPAC.com? It's simple and free, and provides:

  • Access to exclusive articles and news coverage
  • The full version of all monthly digital editions dating back to 2010
  • Allows you to comment on articles and discuss news with HPAC's editors
  • Gain valuable media content and more!

Already registered? here.