Tank level probes

[Don Bradner]

OK, new topic: What can folks tell me about the probes on the waste tank?

My LED gauge appears to have two conditions: 1 it reads smack-on correct, or 2
it reads empty.

Having seen only the first in my early experience, and having past SOB
experience where an empty tank would gradually read full, only showing true
empty if it was severely flushed, I was pretty happy.

Unfortunately on this trip the 2nd condition has been the norm. What I've found
is that all, or most all, of the screw pairs are loose, and will not tighten.
Some signs of leakage around some of them.

If I pull screws out, what will I find (besides the obvious in a waste tank)? is
it possible that I could fill the holes with epoxy and drill/retap, or anything
similar? Anybody run into the problem and have a fix?