Hahn said it's a good idea to cover the part of the sprinkler system that sticks out of the ground called a backflow preventer. Hahn said you can buy covers made specifically for them, but a dark ...

The purpose of this testing is to ensure that the backflow preventer—a crucial device designed to protect the public water supply from contamination or pollution due to backflow—is functioning ...

While different types of backflow prevention devices exist, Kristin Pattinson, Drinking Water Section Chief with the MO Department of Natural Resources, says the devices all do the same thing.

After draining out most of the water from the sprinkler system, hook up an air compressor to blow the lines clear of any remaining water. Start by closing the valve on the backflow preventer ...

To see if you have a backflow preventer on your irrigation system, look for an in-ground rectangle box with a green cover — they’re by the water meter or perimeter of the house.

Your backflow preventer is a crucial component of the irrigation system, and often you can’t check it yourself. Outdoor water can easily become tainted by fertilizers, pesticides and animal waste.

Installing a backflow prevention valve can be costly. “To install one if you don’t have one already, it can range from $300 to $700 plus,” said Alex Jones, owner of Jones Sprinkler.

When to blow out winterize turn off lawn yard sprinkler system for autumn fall winter Colorado lawn care tips how to turning off backflow preventer valve sprinklers.

“The way to know if you have a backflow preventer on your irrigation system is to look for an in-ground, green-lidded rectangular box near the water meter or close to the house.

The issue of sprinkler-system backflow prevention is a complicated one, but for most Longview residents, it boils down to one thing: A costly headache of home ownership.

RYAN PREWITT / JOURNAL Robert Glasgow, irrigation division manager for Roden Landscaping, demonstrates how an enclosure protects an irrigation system backflow preventer. Thieves have been stealing ...