Thanks SprinklerGuy... Your explanation makes sense. I think the best bet at this point is to go ahead and finish the install. After the heads are all in, the dynamics will change significantly from open ended pipes. At that point if it is still a problem I can tune the flow rates, or even add an air chamber. Thanks again, Bill
I have installed Hunter PGV Jar-Top valves with Flow Control and noticed while flushing the lines by manually turning the solenoid on and off, the valve chatters for a second or two when closing. I do not have the controller wired yet. I did not install an air column on the main line. Is this chatter normal? Is it damaging to the valve? Should I retrofit an air column in the line?? I'm on a well with 25 - 55 PSI. Thanks in advance for any inputs... Bill[]
