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Water Distribution | Backflow Prevention
9:17
YouTubeAmerican Water College
Water Distribution | Backflow Prevention
Learn about Distribution System Backflow Prevention in this excerpt from our Distribution Exam Review course. Air Gap - 0:26 RPZ Backflow Preventer - 1:24 Double Check Valve - 5:51 Vacuum Breakers - 7:00 Atmospheric Vacuum Breaker - 7:37 Pressure Vacuum Breaker - 8:18 Visit our website: americanwatercollege.org Send us an email: info ...
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