There are two faucets coming off the pump. If I reduce the flow of either one, water flow stops completely, waits about 15 seconds, then comes back on. If they're both wide open, it runs fine for an extended period.
It's a submersilbe pump to feed my barn, in a 75' dug well. No water tank or pressure tank; just a switch and a Square D pressure switch as protection. According to the previous owner it also has a pressure relief valve, but it's 4' underground, near the junction of the two faucet lines.
I tried bypassing the pressure switch, so now it's just the main power switch inline, but the problem persists. Is it possible that the pressure relief valve is faulty? Can the releif pressure setting have become lower somehow? Doesn't make sense.
The only other thing I can think of is thermal protection, but if that's the case why would the pump run wide open for extended periods without a problem? Thanks!
It's a submersilbe pump to feed my barn, in a 75' dug well. No water tank or pressure tank; just a switch and a Square D pressure switch as protection. According to the previous owner it also has a pressure relief valve, but it's 4' underground, near the junction of the two faucet lines.
I tried bypassing the pressure switch, so now it's just the main power switch inline, but the problem persists. Is it possible that the pressure relief valve is faulty? Can the releif pressure setting have become lower somehow? Doesn't make sense.
The only other thing I can think of is thermal protection, but if that's the case why would the pump run wide open for extended periods without a problem? Thanks!