re: Winterized backflow preventer-question - geauxfish24 on 1/4/15 at 5:52 pmI'm following these instructions:
Winterizing your backflow device properly is easy, will save you a great deal of money and only takes one or two minutes:
1. Shut off the water to your sprinkler system at the main valve or stop-and-waste.
2. The next step will require a standard small flat hea...