"Speedy Jim" wrote in message
t...
Reinhard wrote:

Best guess is the check valve in the submersible pump has failed. Leak in
the bladder could be the cause but after a while there wouldn't be any
more air left. If the problem is the same over and over again then it is
the check valve. If it vgets better after a few cycles then it is the
bladder. If the bladder tank has a vavle on the connection then turn it
off and cycle the pump a few times with 5 minutes wait in between. If
problem is gone then it was the tank, if not gone while tank is off the
system then it is the check valve.


Question from newbie well user: Could a leak in the downpipe
or fitting cause a similar condition?
Would a leaking check or downpipe cause slow drop in tank
pressure during off-cycle?

Jim

If you have pressure dropping while the pump is not working, and you have
eliminated all possible leaks in structure (ie turned the main off to the
house) then the problem is somewhere between the bladder tank and the well.
The bulk of leaks on 10+ y/o systems I've seen are at the connection between
the pitless adapter and the tubing into the house. It seems at some point a
lot of people thought it was fine to bury an attached and fairly rigid
tubing to the metal pitless adapter using a plastic barb. It is then only a
matter of time.