Who ever said weird is correct. I also have unusual check valve that
causes problems at the wellhead. The valve is supposed to let water
escape in both directions. I have had it repaired a few times but have
given up on it. It only froze when it gets below zero. I have the
head covered and run a light bulb on below zero nights. The only
problem is when I forget to switch the bulb on. It has been warm in
Wisconsin the last few winters.

The pump is 30 years old. I have been wondering how much it would cost
to have a well driller excavate below the frost line put in the
standard T, reweld the casing and install a new pump?
thanks tom