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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
76.4K viewsOct 11, 2017
Backflow Prevention Device Installation
Water Distribution | Backflow Prevention
9:17
Water Distribution | Backflow Prevention
YouTubeAmerican Water College
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What is a backflow preventer? Majestic Fire Protection
0:08
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1:56
What is Backflow?
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20K viewsNov 16, 2018
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