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stuartfearon1

Starting Member

1

Thursday, March 24th 2011, 11:44am

All 4 zones come on at the same time

Recently replaced the controller and now all 4 zones come on at the same time and obviously there isn't much water pressure this way ! Any ideas what I may have done wrong ?

Wet_Boots

Supreme Member

Posts: 4,020

Location: Metro NYC

2

Friday, March 25th 2011, 8:02am

Could be bad valves. It only takes one sticking open to drag down the pressure to a point where none of them will reliably close. This is why they make zone valves with flow controls.

Mitchgo

Supreme Member

Posts: 502

Location: Seattle

3

Friday, March 25th 2011, 9:24pm

well..
I would first start with finding the 4 valves in your yard.

Did you winterize your system last year? It's possible they turned on the valves manually and did not shut them off

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