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petewills

14 of 16 zones do not work

petewills
11 years ago

Hi, All,

I have a complex irrigation system I inherited when I bought the house. It was working fine for a couple of months but, one day, 14 of 16 zones stopped working. I have:

checked the voltages at the box (Hunter) and they are fine.

put my hand on solenoids when powered and they do vibrate

turned a couple of solenoid several turns counter clockwise but no water comes out.

Between the water main and the system is a vacuum valve (720-A). I don't know how to trouble shoot it.

I do not know the pluming pipe layout but I do have a map of the sprinkler heads.

Any suggestions?

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