Quote:
Originally Posted by LIforrelaxin
Don't put a back flow valve near the pump, use a foot valve.... the back clow valve near the pump just complicates maters. What is a reasonable thing to do is to put a valve in by the pump, so you don't end up draining everything when you have to work on the water line....
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Just a different perspective on this. I have a back flow valve at the pump and also a foot valve at the end of the line. This prevents the water line from being pressurized. Rationale is that if there is a small leak in the water line (particularly over rocks or at the foot valve or other fittings) the line doesn’t leak the water and the pump doesn’t cycle on and off, as is what the OP is experiencing. Instead, the only thing that happens is the pump might suck up a bit of air from a small leak (of course, if it’s a large leak all bets are off and it can lose the prime).