Protect Your Backflow Assembly From Freezing

 

The best way to protect your backflow assembly from our harsh Utah winter temperatures is to remove the unit and store it in a warm place.

Make sure to cover the open ends of the line that are sticking out of the ground with something to prevent dirt, debris, and insects etc. from entering the system.

HOW TO DRAIN A PRESSURE VACUUM BREAKER (PVB)

  1. Shut off the culinary water supply at the stop and waste.
  2. Open all ball valves.
  3. Open both test cocks to allow any water in the check valves to drain. Opening the check valves will also introduce air into the line, allowing water to drain out of the stop and waste.
  4. Leave the ball valves open for the winter to allow for expansion.
  5. Once the unit is completely drained, turn the test cocks back to the closed position.

HOW TO DRAIN A REDUCED PRESSURE ZONE ASSEMBLY  (RP)

  1. Shut off culinary water supply at the stop and waste.
  2. Open all ball valves.
  3. Open all 4 test cocks to allow any water in the check valves to escape. Opening the check valves will also introduce air into the line, causing any water in the line to drain back and out of the stop and waste.
  4. Leave the ball valves open for the winter to allow for expansion.
  5. Once the unit is completely drained, turn the test cocks back to the closed position.

ADDITIONAL NOTES

Turning the test cocks back to the closed position will prevent insects and debris from turning your backflow assembly into a nesting ground.

Never force compressed air through an RP or PVB.