A Quick how-to video, and graphic that will help you prevent your irrigation pipes on your backflow preventer from freezing.
You should Winterize your sprinkler system in Southern Texas if the temperatures are expected to drop below 32 degrees. We do not typically have to worry about pipes freezing below ground, but we do need to protect the backflow preventers that are located above ground.
When in doubt, always consult a professional. This video, and graphic are for information only.