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Tuesday, September 11th 2018, 3:09pm

Master valve shutoff triggers vacuum breaker?

Interested in anyone has seen this...

My irrigation system came with a Rain Tree master valve installed just downstream from the vacuum breaker and is connected to the MV connection on an Esp Me controller. It was installed about 2 years ago. AFAIK the master valve has always been manually opened since the system was installed (so was not under control of the Esp Me). I decided to close the valve and let the controller open it during irrigation cycles. All was well until the 3rd cycle when water started coming out from the vacuum breaker bell housing. I would not have thought that the master valve closing would have done anything to the VB. Any ideas where to start troubleshooting?

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