gwandsh wrote:
This weekend we did a shock on our ~350' well to address some iron
bacteria issues. Followed instructions carefully, adding measured
amount of bleach and recirculating well water via garden hose back
into the well head. Then we ran each faucet slightly untilI we could
smell chlorine, turned it off, turned off the well circuit, and let it
sit for the night.

The rest of the process was to run things out via hose the next
morning, so as to not compromise our septic system. However, when I
got up, I found that our pressure tank showed 0 psi. When I turn on
the well circuit, I can hear the pump humming, but no water gets
delivered to the pressure tank.

I took off the well cap again and powered the well circuit. I can
hear "activity" in the well, not just the distant vibration or hum.
With the echos and such, it is impossible to tell what that sound
really is.

It seems to me that somehow I have lost the seal prime on my well pump
(or have a hole in the delivery pipe) that is preventing the water
from being delivered. Anybody know of a way to diagnose this issue
without special equipment? I believe the pump is at least 300' deep,a
nd has worked flawlessly for years.

When my pressure drops to zero during something like a power failure, I
need to shut off valve to house, past pressure tank, to turn back on as
pump needs a pressure head to pump against otherwise low pressure turns
it off. Even then, I need to hold switch a few seconds to develop the head.