Re: Well pump
Posted by Hube on February 04, 2004 at 18:21:08:
In response to Re: Well pump
: My well pump recently went out {after 22 years} and when i replaced it i could not find a 1/3hp 10 gpm pump anywhere. I installed a 3/4hp 10 gpm and now the pump turns on/off 3-4 times when i flush a toilet. I turned the breaker off to the pump and ran all the pressure out of the fawcett. I then measured the PSI on the 15 gallon "pre-charge" pressure tank = 0 psi. The side of the tank said "precharged to 30 psi" so i pumped it up to 30 psi and threw the breaker back on. She pumped back up 50psi on the gauge. The pump still comes on/off 2 times while flushing a toilet. The pressure switch is set fo 30psi on 50 psi off. My question is... Why when i flush a 1.6 gpf toilet does the pump need to come on. Should'nt a 15 gallon tank suffice at least a few flush's? Thank you in advance for you reply and time.
The pressure tank usually only holds 25-30 % of the tanks rating. Example; A 20 gallon tank will allow approx.5-6 gallons of water to enter it. A "low flush toilet (1.6 gallon should flush roughly 3-4 times with-out the pump kicking in with a FULL tank.. It seems like an adjustment to the Bladder pressure is required. First ,drain the tank completely (Pump power off),then check what the bladder psi is. Put air in until it is 2 psi below the cut-in pressure. Let us know how you make out. Hube

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