Locating the Main Shut-Off Valve for a Sprinkler System in a New Home

Can't Find the Irrigation Main Shut‑Off

Try the white handle in the flower bed—it may be the isolation valve.
Also check near where the main water line enters the house; the irrigation tee‑off is usually there.

If neither works, trace the irrigation supply line from the backflow preventer toward the house.

Irrigation: Fixing a Zone That Won't Shut Off: Nelson 8424 System; Toro 6‑Zone System: Zone 3 Runs Continuously, Zone 6 Won’t Start; Sprinkler Station Won’t Shut Off – How to Turn Off Water Supply; Hardie Sprinkler Zone Won't Shut Off: Replace Solenoid or Diaphragm; Lightning Strike Causes Single Zone to Run Continuously; Fixing a Zone That Won’t Shut Off After 5 Minutes; Locating a Buried Irrigation Shut-Off Valve; Manual Sprinkler Valve Won't Shut Off: Ball or Gate Valve Failure; Richdel R402 Timer Malfunction: Replacement Guide; Finding and Operating Buried Sprinkler Shutoff Valves

Garden Articles

Plants