When it drops below freezing, you run the risk of damaging your sprinkler system. Prevent this by stopping the water from flowing into your irrigation pipes. Your first step is to find the sprinkler backflow preventor. It is usually a set of pipes sticking out of the ground in an upside-down "U" shape. There will be two valves that you will need to turn off. Turn them until they are perpendicular with the pipe. Open the manual drain valve that is located between the two valves you just closed. If you live in southern Louisiana, you are most likely safe to stop at this point.
Required Tools In Hard Freeze Areas:
In areas where there are hard freezes, the ground can freeze, as can your underground pipes. If you live in these areas, you will need to blow the water out of your pipes. Most compressors cannot blowout an entire system at once. You must manually open each zone one by one and use the compressor to blow out the water. There should be a blowout port on the backflow preventor on the side that goes down into your irrigation system. The irrigation heads should pop up and shoot out water. As soon as the water stops, unplug the hose. The gears in the irrigation heads can be severely damaged in as little as a minute without water to cool them.
Call GreenSeasons to winterize or repair your sprinkler system at 225-752-2333 or toll free at 888-353-1971.