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Old 05-31-2018, 11:07 PM   #2
wingnut60
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Join Date: Sep 2005
Location: Where we park it
Posts: 2,838
You probably have the sensors that are inside the tank--they get covered with crud and read erroneously. There are some products that are supposed to remove all crud in the insides but results are not always different. Some people use bleach with some Dawn or Cascade and a partially full tank and move to next site--sometimes that works.
Might look into the SeeLevel gauges that have the sensors on the outside of the tank and don't get crudded up.
Good luck.
Joe
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