I have a sub pump with a Square-D Switch and a Bladder Tank hooked up to a shallow well and I'm using for irrigation only. Everything is working just fine except the Sprinkler heads are having a hard time shutting down. I was assuming it was because of the difference in pressure. My switch is cut on at 40 and off at 60 with the bladder Tank set at 38. The pressure is fine and also the volume. I was wondering if a CSV would help my situation. and by the way I have a pumptec also connected.