Backflow preventers are installed with a fire sprinkler system to prevent any contaminated water from flowing back into the main water supply. Installing a backflow preventer usually costs around $300 ...

Installing the right sprinkler system can save time and money, as well as conserve energy and water output. It can also increase the rich lushness and robust health of your lawn. Ready to get started?

They believe E. Coli from someone’s yard made it from their sprinkler system through the backflow into the main water break. They’re not the only ones in the Inland Northwest to make it a requirement.

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 ...