check valve

If one of my bays is basically leaking water everytime the bay next to it is used I assume this is a check valve. But which one? Anyone have any
ideas?

could just be a leak in a hose.

If it is high pressure usage it would likely be the weep system check valve at the bay that iis turned on. That check valve is usually located at the pump. But, it usually leaks out of multiple bays since the weeps are typically interconnected.

If it happens when the SFR is on, then it is likely the SFR solenoid on the "leaky" bay.

great guys thanks for the info.

was the check valve in the weep system. changed it and pressure was normal in that bay an no more leaking out of the neighboring bay. thanks GregPack.