How to drain a PVB Backflow
RETURN TO HOW-TO'S
- First, Turn the water off to the sprinkler system.
- Turn valve handles clockwise to a 45 degree angle. Use pliers if handle is difficult to turn.
- Turn bleed screws 1/4 of a turn with a flat screw driver to open bleed valve.
- Last, locate and open any drains that may be installed both inside the house by water shut off and outside on your backflow.