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Sprinkler Zones Won't Turn On After Pipe Repair

After Relocating Three Zones, None Activate

Robert repaired a cracked pipe on zone 3, then found no zones would turn on. Could be backflow device or pump issue.

Diagnostic Questions

  • What is the water source? Pond, lake, municipal, or well?
  • If pump-fed from pond/lake: Is the suction line intact? Pump primed? Foot valve and basket clear?
  • Are all mainline isolation valves fully open?

Critical Check: Pump Prime and Suction

If the pump lost prime during repair work, it won't deliver water. Reprime, check suction line for air leaks (even tiny ones), and verify foot valve holds water. A single air leak prevents priming.

Next Steps

Confirm water source and pump type. Then systematically verify: power to pump, pump prime, suction integrity, mainline valves open, controller sending 24VAC to valves. Reply with details for further guidance.

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