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bbs71

Puzzled Lawn Sprinkling System

21 years ago

I have a lawn sprinkler system...rain bird controller, toro pop ups...no pressure regulator, has worked fine for 3 years with out one....three zones...three automatic valves....one zone front....next back....thrid drips....

Problem: Front Zone was working fine....Back Zone not...Drips off...Changed diaphram and bleeder valve in Automatic Valve for back....solinoids work fine....Backs not working....open bleeder valve on Back valve....sprinklers working great...bleeder valve shooting out water in irrigation box....close bleeder valve...back sprinklers shut off...solinoid still engaged until turned off by controller. Turned fronts on....opened bleeder valve....water shoots out....close bleeder valve...NOW Fronts not working either!!!!...Totally puzzled...any sugguestions? No rain sensors installed. Thanks in advance for any help!

Bill

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