Quote Originally Posted by DMCH James View Post
We've found that many of the units that when installed do not read "full" or not reading full for very long are simply a result of a combination of either the tank not being *completely* filled (which we don't like to recommend to prevent the boot popping off the top of the tank).
Might I suggest a resistor between the signal wire and ground? ..or is it off so far that it will lie (too much) on the empty end?