Hi all.
House was built in the '70s and is still using the same pump and galvanized pressure tank. I don't know how deep the well is, but the pump is a 2hp Red Jacket submersible. Typically the pump draws around 12-1/2 amps when running normally. Recently, I've noticed the pump is not shutting off, because the tank pressure is not reaching the cutoff (50 PSI). If I adjust the pressure switch down so that the pump shuts off, and then readjust back up, I can monitor the pump current as the tank fills. The switch is set to cycle the pump on at 30 PSI. The tank fills normally from 30 PSI to just under 40 PSI, the then the pressure increase slows dramatically and stalls at around 45 PSI. At 30 PSI the pump is drawing around 11.7 Amps. As the tank pressure increases the pump current decreases to around 10.8 Amps at 45 PSI.
This makes no sense to me. I'm thinking that I can't achieve cutoff because of a worn out pump, but I can't resolve this with the current readings. Thoughts?
House was built in the '70s and is still using the same pump and galvanized pressure tank. I don't know how deep the well is, but the pump is a 2hp Red Jacket submersible. Typically the pump draws around 12-1/2 amps when running normally. Recently, I've noticed the pump is not shutting off, because the tank pressure is not reaching the cutoff (50 PSI). If I adjust the pressure switch down so that the pump shuts off, and then readjust back up, I can monitor the pump current as the tank fills. The switch is set to cycle the pump on at 30 PSI. The tank fills normally from 30 PSI to just under 40 PSI, the then the pressure increase slows dramatically and stalls at around 45 PSI. At 30 PSI the pump is drawing around 11.7 Amps. As the tank pressure increases the pump current decreases to around 10.8 Amps at 45 PSI.
This makes no sense to me. I'm thinking that I can't achieve cutoff because of a worn out pump, but I can't resolve this with the current readings. Thoughts?
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