Winterizing your irrigation system
Drain water from pipes
How to Winterize Your Irrigation System
If you live where is freezes, you need to insulate mainline sprinkler pipes and drain the rest.
#1 Wrap exposed mainline sprinkler pipes with insulation foam and insulating tape.
# 2 Drain drip lines. Add auto flush valves and threaded end caps to your drip mainlines. Flush valves should be installed at the lowest point on your drip system. The flush valve will automatically open and drain the water from your drip sprinkler line when it is turned off. It will close at 7psi. A threaded end cap will allow you to easily open the line and drain it.
Create a "Quick Disconnect"
If you want to disconnect and put away your drip lines for winter, make a few "Quick Disconnects" and simplify the job.
STEP TWO: Pick up a few hose end caps to cap off lines to keep them clean while in storage.
You can also use a Compression Swivel Tee to construct a quick disconnect.
When it is time to shut off and winterize your sprinkler system, follow these steps:
In-line or anti-siphon sprinkler valves:
1. Close the gate valve or backflow preventer to stop the water supply to your irrigation sprinkler valves.
2. Open each irrigation sprinkler valve individually to drain water between it and the gate valve and/or back flow preventer.
3. Open the end caps or figure 8s at the end of your drip lines to facilitate drainage.
Hose bibb connection:
1. Close the hose bibb (faucet, spigot, hydrant).
2. Manually turn on the hose end timer to drain water between the hose bibb and timer.
3. Unscrew the end cap or remove the figure 8 on the end of your drip mainline.
4. Unscrew the swivel adapter on the regulator.
5. This will allow water to drain out of the drip mainline.
Last modified: September 26, 2011