Sprinkler Winterization Instructions
Most sprinkler systems have a backflow preventer section of pipe that sticks up above the ground about 18-24 inches. Because this is exposed to wind, it freezes very easily and can explode under pressure. When temperatures get to freezing levels, it’s strongly recommended to drain that section of pipe or cover it (or both). Draining it only takes a couple of minutes!

To cover it…you have a few options. Wrap it with a couple of old towels, then cover the whole thing with an upside-down plastic Rubbermaid type of container. Or wrap it with insulation and duct tape a black plastic trash bag over the insulation. Or buy a sprinkler sock made for this purpose; they cost around $50-$100. For the really cold days, or several freezing days in a row, covering it may not be enough.

To drain it…

If your sprinkler backflow preventer looks like this, CLICK HERE
If your sprinkler backflow preventer looks like this, CLICK HERE
If your system doesn't look like either of these, contact your sprinkler installer or manufacturer for instructions on winterization.