How to Install a Backflow Preventer | DoItYourself.com
How to Install a Backflow Preventer | DoItYourself.com
Jan 26, 2010
doityourself.com
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Installing a new floor drain with a backflow preventer. It works like a check valve to seal off water back-up caused by overloaded sewers. Water will flow normally through the drain until the sewer begins to back up. Then the float rises to seal off the drain opening until the water recedes. #plumbproud #plumb #plumberslife #plumbtok #plumbing #plumbinglife #trades #apprentice #learning #edutok #knowledge #mindpower #jobtips #careergoals #education #teamplumb #learnontiktok #learnwithtiktok #plu
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