Winter is just around the corner. With a cold front on the way, the temperatures in Houston are dropping fast. Midland experienced a 30 degree drop in temperature in a 24 hour period! In this article we will provide you with step-by-step instructions on you how to protect (winterize) your Pressure Vacuum Breaker in preparation for freezing temperatures.


STEP 1: Turn off main shut off valve (if applicable), See image below. If you do not have a main shut off valve, then skip to step 2.0

STEP 2: Turn off the first valve handle on your backflow( must be perpendicular to your line). Leave the second valve on.

STEP 3: Drain out the water in the line by turning the test clocks parallel with the opening. Use a flat head screwdriver.


STEP 4: Turn the second valve handle on the backflow to a 45-degree angle. This will allow any excess water to drain.

STEP 5: Insulate your pipes, if not already done. 

STEP 6: Install an insulated bag over your backflow.

If you need additional help getting thos done, feel free to give us a call. Our team of professionals are available to assist you. Its best to prepare now and prevent any future damage.

For additional information, contact us at: 832-304-8282 or email us at: support@greencenturyservices.com