Temporary Backflow Draining

Every autumn we start to get cold fronts that bring us periodic freezing temperatures.  During these periods of cold weather it is critical that you, the homeowner, temporarily drain your backflow preventer so that it doesn’t freeze and crack.  Repairing or replacing broken backflow preventers can be very costly to homeowners. If you are unsure how to do this please take a few minutes and review the following documents (click on each document to enlarge).

Pressure Vacuum Breaker (PVB) Temporary Draining Instructions

Reduced Pressure (RP) Backflow Preventer Temporary Draining Procedure

Positioning of Ball Valves for Temporary Draining