The cold season is approaching fast. Now is the time to start protecting your sprinkler system and backflow preventer from freezing.
Backflow Preventer Winterization
- Shut off the water to your sprinkler system at the main valve or stop-and-waste.
- Drain the water from the backflow preventer by opening the test cocks. (There are 4
test cocks on the side or top of your backflow preventer), to open them turn the little
screw ¼ of a turn.
- Turn the valves on either side of the assembly ¼ turn so they are not completely
closed or open.
- (Optional) If your backflow preventer was installed with unions you can remove it
and store it in your basement for the winter. After you take it off make sure you drain
the water from both sides, open the test cocks and close the valves ¼ turn. It may also
be good to wrap it in a towel or old blanket.
- (Optional) You can wrap the backflow preventer with old towels, blankets, or other
insulation to further protect it from freezing.
If properly winterized your backflow preventer should be able to sustain the cold winter months. For more information contact the Water Division at 253-5230.
