I have a rainbird ASV Brass Manual Anti-Siphon Valve that leads into a control valve (not sure what brand). I have a constant light leak along that whole line even with the system off. I turned off the manual valve but there is still water in the control valve. If I turn the contol valve on manually some water comes out but not enough to turn the sprinkler system. I'm not sure what to check from here. I did buy a rebuld kit for the anti-siphon valve but that did not change anything. Any troubles...
