Greenmountain
Member
I just installed a new well pump and csv. I have a 4" 16gpm 1hp grundfos in a 5" stainless flow sleeve in an open water well.
I don't have an accurate size for my pressure tank, so I am fussing with the pressure switch and csv to try to obtain optimal pressure but am not sure how long it should take to go from CSV-constant-run-pressure to cut-out pressure. I'm currently running the csv around 55psi and cut-out pressure is about 62; time from water shut-off to cut-out is about 75 seconds.
I believe I've seen the recommended time at 2-3 minutes, but I'm concerned that the pump running that long with such minimal flow, even in a flow sleeve, may not cool the motor enough. I have been checking amperage draw and it doesn't seem to fluctuate much at all... still pulls about the same amperage when all valves are closed and the pt is filling as when it is flowing 5-6gpm (difference is less than 1 amp)
please advise
thanks
I don't have an accurate size for my pressure tank, so I am fussing with the pressure switch and csv to try to obtain optimal pressure but am not sure how long it should take to go from CSV-constant-run-pressure to cut-out pressure. I'm currently running the csv around 55psi and cut-out pressure is about 62; time from water shut-off to cut-out is about 75 seconds.
I believe I've seen the recommended time at 2-3 minutes, but I'm concerned that the pump running that long with such minimal flow, even in a flow sleeve, may not cool the motor enough. I have been checking amperage draw and it doesn't seem to fluctuate much at all... still pulls about the same amperage when all valves are closed and the pt is filling as when it is flowing 5-6gpm (difference is less than 1 amp)
please advise
thanks