Irrigation Backflow Information
Backflow Irrigation Spring Startup Instruction Video
Backflow Irrigation Winterization Instructions
- Close main shutoff valve (A) by turning clockwise as far as possible.
- VERY IMPORTANT! Remove upstream drain plug (B).
- Open test cocks (C) and isolation ball valves (D) to depressurize line.
- Purge with pressurized air.
- Reinstall drain plug (B).
- Leave test cocks (C) and isolation ball valve handles (D) in 45 deg angle to drain ball valves and prevent casting damage.