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Backflow Prevention 的热门建议

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A CRASH COURSE in Backflow Prevention
2:15
YouTubeWatts Water
A CRASH COURSE in Backflow Prevention
What is backflow? What is a backflow preventer? We're back in the Watts Works wet lab to answer those age old questions. Gary and Cameron breakdown why backflow prevention is a critical component of any water safety system and how backflow preventers protect our drinking water. Take a deeper dive into the world of backflow prevention at http ...
已浏览 5.1万 次2021年7月15日
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