What is a Backflow Prevention Device? Backflow prevention devices are plumbing apparatus stopping reverse water flow from a potentially polluted source into the potable (drinking) water supply. Backflow prevention devices must be installed where there is a potential hazard. Certain types of backflow prevention devices are classified as “testable” so they must be tested annually…Read more
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- What is a Backflow Prevention Device? Backflow prevention devices are…Read more
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