Although backflow preventers are more common at commercial buildings that have fire sprinkler systems, residential customers may need one, too, depending on local regulations. Homes that have ...

a raised bed irrigation kit and a timer. For optimal performance, use a clean water source with 12-50 PSI. Russo says it’s vital to attach a backflow preventer directly to your outdoor spigot to ...

Starting with your sprinkler system, Woodard says to completely ... to turn the test ports to release any water that is in the backflow preventer. For a visual, here’s a report from KHOU 11 ...