well pressure tank

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  #1  
Old 05-06-01, 06:48 AM
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Help! We have a submersible well pump with a pressure tank.
We need to know the signs of a pressure tank going bad. Sometimes the pressure tank will work just fine and other times it will not have pressure. Do we need or new pressure tank or is there another problem? cm
 
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  #2  
Old 05-06-01, 10:06 AM
Join Date: Dec 1999
Location: Northeastern NC On The Albemarle Sound
Posts: 10,952
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I assume that this is an air bladder-type pressure tank, rather than an old galvanized tank with an air volume control.
It should be set at your pump cut-on pressure (usually 30 psi for residential) or two psi below it (28).
With the water running enough to cut the pump on, check the air pressure at the valve near the top of the tank with a tire pressure gauge.
If it's low, air it up with a bicycle pump or portable air tank or compressor. If the tank won't hold this minimum pressure, the bladder is leaking and you need to replace the tank.
If the tank pressure is o.k., you have another problem.
Good Luck!
Mike
 
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