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Instant Backflow Program

Instant Backflow Program. A foundation to start your backflow program. Why should you invest in a backflow program?. Backflow events occur every day in all types of water systems. People become sick or ill from these events. Your water system quality can be trashed in just a few moments.

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Instant Backflow Program

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  1. Instant Backflow Program A foundation to start your backflow program www.h2osolutions.com

  2. Why should you invest in a backflow program? • Backflow events occur every day in all types of water systems. • People become sick or ill from these events. • Your water system quality can be trashed in just a few moments. www.h2osolutions.com

  3. Prevention is very cost effective • It takes only a little structure to prevent backflow • Backflow incidents can cost millions. www.h2osolutions.com

  4. Real incidents: • Termite poison siphoned into a picnic lemon-aid cooler. • Fertilizer and anti-fungicide pumped into water system. • Acetylene gas from a carbide gas system “flamed out” in a residential neighborhood • NV school heating system contaminated school water fountain. www.h2osolutions.com

  5. Common enough issues: • Fire systems, industrial applications agricultural pumps etc. • Water shut off or low pressure for: • Main break • Flushing • Fire www.h2osolutions.com

  6. The law puts the responsibility on the water utility • Documented health impacts (death and illness) going back more than a century. • Subcontracting your backflow program doesn’t relieve your responsibility. • Both California and Nevada Law require backflow. www.h2osolutions.com

  7. What are the key components? • Have a simple and clear backflow program • Require backflow compliance as a prerequisite of service. • Track the annual testing. • Document your program www.h2osolutions.com

  8. The customer contract must explain compliance with backflow protection • Typically everybody but residences must have an airgap or reduced pressure principal backflow device at the meter or cross connection • I (personally) would argue FOR requiring a non-testable dual check on residences (at the meter) $25 each. www.h2osolutions.com

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  10. Customer installs, owns and pays for annual testing. If it fails a test they can have it repaired and retested. Explain rules Send letters which educate as well as remind of obligation Provide a list of approved testers Track compliance Who does what: www.h2osolutions.com

  11. What will it cost? • Simplest program is index cards of backflow devices • More advanced systems track with computer software • A water system may chose to offer in house testing. www.h2osolutions.com

  12. What are the backflow devices? • Air Gap • RP (double check valve with a dump valve • Double check • Vacuum breaker (two flavors) www.h2osolutions.com

  13. Backflow Control Methods & Devices Air Gap • Most effective and is accepted in all cross connection situations and for all degrees of risk. • The gap between the supply outlet and the overflow of the downstream receptacle must measure (2) times the diameter of the outlets tip but no less than 1” www.h2osolutions.com

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  17. The basics: • Statement in customer contract requiring backflow compliance as a term of service • All single family houses to have a dual check valve; all other connections to have a Reduced pressure device • Reduced pressure devices to be checked annually by a certified tester. www.h2osolutions.com

  18. All Reduced Pressure devices to be installed at the __________ (cross connection or meter). • At least 12” clearance all around, above ground • For more information: • http://www.usc.edu/dept/fccchr/intro.html www.h2osolutions.com

  19. www.h2osolutions.com • University of Southern California: • http://www.usc.edu/dept/fccchr/intro.html • Our own section: • http://ca-nv-awwa.org/CA-NV/ • Backflow training at it’s best: • http://www.bandlbackflow.com/ • Four page summary of backflow: • http://www.nesc.wvu.edu/ndwc/ndwc_tb_available.htm#Cross www.h2osolutions.com

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