You are not logged in.

Dear visitor, welcome to SPRINKLER TALK FORUM - You Got Questions, We've Got Answers. If this is your first visit here, please read the Help. It explains how this page works. You must be registered before you can use all the page's features. Please use the registration form, to register here or read more information about the registration process. If you are already registered, please login here.


Starting Member


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 ?


Supreme Member

Posts: 5,305

Location: Metro NYC


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.


Supreme Member

Posts: 493

Location: Seattle


Friday, March 25th 2011, 9:24pm

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

Rate this thread