Winterizing Your Sprinkler System
If your Backflow device is a Double Check, it will be underground in a green box located near your water meter - there is nothing you need to do to prevent it from freezing. Turn your Controller to the OFF setting so the system doesn't run.
If your Backflow is an RPZ device (brass u-shape), it will be above ground near your water meter or next to the house and may be covered with an insulated bag and it will need to be properly drained.
Instructions to drain RPZ:
1. Shut off ball valve to irrigation
2. Remove caps on backflow.(yellow or blue)
3. Open test valves. (where you removed caps from)
4. Open both 1/2” shut offs on the backflow pipes.
5. Leave brass handles as they are. Only open and close pvc
Water will release when test valves opened
6. Turn Controller to OFF setting so system doesn't run
For questions, call 512.922.7478
Controller Information
Rainbird ESP - Me Controller
Building on its predecessor—the ESP Modular—the enhanced Rain Bird® ESP-Me offers easy programming, a higher station count and new features so easy to use, you’ll actually use them. With 4- to 22-station scalability, the ESP-Me can help you better serve residential to light commercial jobs. The freedom to install the same controller on a variety of sites means you can grow your business like never before. And the more stations you add, the more you save—providing you and your customers with more value for the money.