RV Repair: WATER TANK DISPLAY, waste water tanks, rv supply

Question
I HAVE A 2005 RAPTOR TOY HAULER  AND MY WATER DISPLAY SAYS THAT ALL THE TANKS ARE FULL(THE LED SHOWS AT THE FULL MARK) . THEY ARE NOT FULL  BUT I WOULD LIKE TO KNOW HOW MUCH THEY HAVE IN THEM. HOPE YOU HAVE AN ANSWER. THANKS!  

Answer
If you are refering to your waste water tanks, this is a typical problem.  Trash and slime build up in the tank and lay across the probes.  You can remedy this by adding about half the capacity of water, an 8 or 10 pound bag of ice, and some probe cleaner (available at any rv supply). Then pull the trailer around for a while and the ice will "scrub" the inside of the tank.

Garry