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Water supply troubleshooting chart

House water is contaminated with bacteria.
Possible Causes: Remedy:
No backflow prevention on the system. Install the mandated backflow prevention device required by local codes.


There is water runoff after a zone finishes watering.
Possible Causes: Remedy:
System is over watering. Reduce the run times for the affected zones.
System is watering a slope. Irrigate slopes for shorter periods but more often, or reduce the sprinkler precipitation rate for that zone.


Water is puddling in the yard.
Possible Causes: Remedy:
Leak in the system. Locate the leak and repair it or replace broken part.
Punctured drip irrigation line. Use a plug to repair the leak.
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System is irrigation too long. Reduce the minutes of run time for your zones.


There is no water in one part of one zone.
Possible Causes: Remedy:
Poly tubing supply line may be kinked Inspect the lines and straighten any kinks. Use drip stakes to help keep the line free of kinks.
Rock or other debris is deforming the supply pipe. Inspect the line, remove any rocks and bed the pipe in sand.
Buildup of debris and sediment has blocked line. Flush out the zone lines thoroughly.


Freeze damage occurs during winter.
Possible Causes: Remedy:
System was not properly winterized.
  1. Add drain valves at the lowest point in each zone.
  2. Use compressed air to blow out system before each winter


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