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How a backflow prevention valve works
0:36
YouTubeStAugustineRecord
How a backflow prevention valve works
CONTRIBUTED A video from WAPRO Inc shows how a backflow prevention valve works. The city of St. Augustine is planning to install these types of valves in Davis Shores, including valves from Tideflex. http://bit.ly/2ybt7JK http://bit.ly/2wO9Ydc
74.8K viewsOct 11, 2017
Backflow Testing Tutorial
What is a Backflow Preventer and How Does It Work
4:21
What is a Backflow Preventer and How Does It Work
YouTubePlumbing Parts Pro
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YouTubeAmericanWaterWorks
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What Happens When an RPZ Backflow Preventer Fails?
YouTubeSafe-T-Cover
27.9K viewsSep 4, 2014
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