Harry K wrote:
....

In addition to what dpb said:

Fix it quick. Your pump is in the process of being destroyed. Short
cycling is extremely hard on pumps.

Good point--

One thing you can try if you can do w/o water for several hours -- when
you drain the water side, pressurize the bladder side to several pounds
over setpoint value -- say +5 and let sit w/. You may be able to force
some of the water back across the barrier but you don't want to put a
whole lot of extra pressure on it. This works far better w/ a diaphragm
design (which I have) rather than a bladder, but it may still help some.

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