If you have an irrigation system, then in theory, you should have a backflow preventer.” The purpose of the backflow prevention device is to protect the public water system from contamination.

If your sprinkler has manual drain valves, also shut off the valves on the backflow preventer. A backflow device, typically located near the water main from which the sprinkler water is drawn ...

Cover box back up. Now, go to your back flow preventer to keep the water from your sprinkler system from going back into the drinking water inside your house. Look for your ports. It's the area ...

Blaine partners with BSI Online to ensure water safety by mandating annual checks of backflow prevention devices.