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