well pumps
#1
04-19-02, 04:10 PM
well pumps
i had a 36 gal bladder tank that has been replaced with a 20gal bladder tank. the pump was also replaced. now the pump runs all the time. would this be because of reducing the size of the tank or maybe the on/off pressure sensor is not correct? i also use to have 1" pipe feeding the tank and the plumber reduced it to 3/4". could this be a factor.
any thoughts or suggestions would be great, i don't want to burn up the pump for it running all the time.
any thoughts or suggestions would be great, i don't want to burn up the pump for it running all the time.
#2
04-20-02, 05:18 AM
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The bladder tank pressure should be two psi below (usually 18 psi or 28 psi for residential pumps) your pump cut-on pressure.
To check it, unplug or turn off power to pump, drain the water pressure off, and check the bladder tank air valve with a tire gauge.
If it is too high, bleed it off. If it is too low, air it up with a bicycle pump or portable air tank or compressor.
You also can adjust pump cut-on/cut-off with your pressure switch.
Your pump should be set at 20-40 psi cut-on/cut-off or 30-50 psi.
Turn the spring-loaded nut(s) down to increase pressure and up to decrease.
For an excellent tutorial on wells and pumps, visit Ron Peek's website at www.peekspump.com
Good luck!
Mike
To check it, unplug or turn off power to pump, drain the water pressure off, and check the bladder tank air valve with a tire gauge.
If it is too high, bleed it off. If it is too low, air it up with a bicycle pump or portable air tank or compressor.
You also can adjust pump cut-on/cut-off with your pressure switch.
Your pump should be set at 20-40 psi cut-on/cut-off or 30-50 psi.
Turn the spring-loaded nut(s) down to increase pressure and up to decrease.
For an excellent tutorial on wells and pumps, visit Ron Peek's website at www.peekspump.com
Good luck!
Mike
#3
04-20-02, 07:14 AM
Well pumps
Hi,
A 20 gallon bladder tank has a drawdown of just under 6 gallons (at 30/50). A 36 gallon tank has a drawdown about twice that of a 20 gallon. It could be even less if the pump/pressure tank isn't set up together, as Mike has described in his post.
Reducing the line to 3/4" probably isn't causing this problem, but I don't really understand why he put such a small pressure tank on the system.
Ron Peeks
R.L. Peeks Pump Sales
www.peekspump.com
A 20 gallon bladder tank has a drawdown of just under 6 gallons (at 30/50). A 36 gallon tank has a drawdown about twice that of a 20 gallon. It could be even less if the pump/pressure tank isn't set up together, as Mike has described in his post.
Reducing the line to 3/4" probably isn't causing this problem, but I don't really understand why he put such a small pressure tank on the system.
Ron Peeks
R.L. Peeks Pump Sales
www.peekspump.com
