Pump Cycles Slowly, Zone 5 Head Pops Up During Zone 1 Run

6-zone system. After full cycle, pump cycles on/off slowly. Manual zone 1: all 4 heads pop up, plus one head from zone 5.

Valve Not Closing Fully

Tony: "It is most likely that the valve for station 5 had not closed all the way, and was letting some water past, enough to operate the head. I cant really tell from your information whether you have a pump problem or a valve problem. Is it a pressure system or a direct pump?"

Weeping valve on zone 5 leaks into its lateral. When zone 1 runs, system pressure pushes that leaked water out the zone 5 head. Pump cycling suggests pressure tank/system issue—need to know if it's a pressure tank system or direct pump.