NASHVILLE, Tenn., March 2, 2020 /PRNewswire-PRWeb/ -- Backflow preventers are critical to protecting our water supply. They keep contaminated water from coming in contact with drinking water. This is ...
One huge change that came with the new Minnesota State Plumbing Code that went into effect on January 23rd of this year was the requirement for annual backflow preventer testing. Here's the exact code ...
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