The one time I worked on someething like t his, there was a diaphragm gadget
on the end of the tank. From what I could tell, it was deigned to inject a
little bit of air into the tank every time the well pump turned on. Seemed
like a good idea.

Wonder if you can replace that plug with a nipple and an air chuck (like on
car tire) and then just inflate the tank a bit instead of draining it?

--

Christopher A. Young
Learn more about Jesus
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www.mormons.com


"Ed Christie" wrote in message
...


Some how the water tank loses the air in the tank. After a few months
the well pump starts to short cycle. At this time I remove the plug
that is about halfway up the tank and drain the excess water
out.replace the plug and everything is OK for a few months more.

I can find no where for the air to leak out. It seems like it has to
be at the top of the tank, above the plug that I remove to drain out
the excess water. I don't think that it is the drain plug because as
soon as it gets below the water level if there was any leak, it would
then be water, and I dont see any wet spots.

Any Ideas would be appreciated.

Ed Christie