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 ...
Hayden Lake, Coeur d’Alene and Post Falls are just some of the cities already implementing it. Installing a backflow prevention valve can be costly. “To install one if you don’t have one already, it ...
ST. PETERSBURG, Fla. — Retired professional mechanical engineer Mike Higgins, 75, recently sent the city of St. Petersburg a letter with ideas on how to redesign backflow preventers to make them more ...
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