Join Date: Oct 2007
Thanked 75 Times in 66 Posts
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I've been playing with my moisture meter quite a bit lately. I've noticed that if their is metal the other side of the glass the meter will read off the scale. Is their any chance their is some kind of metal backing plate near the fills. Or maybe the meter is reading the fill tube.
As was mentioned if you pull the fitting you should be able to see and feel wet core in the hole if that is the problem?