What did you do to your Class C MH today???

The kids borrowed the C to go to the lake for the week, the son-in-law said that after just 2days the tanks needed to be empty. Only 4 people on board, should not need to be empty that soon.We got to looking really close at things. One of the sensors was dirty turned on the flush, took care of that. The tanks go all the way across the chassis, they are a L shape, with the L secton hanging down into the compartment where the dump vavles are, in looking closely we saw that the 1/3 sensor is only 1" off the bottom of the L. the 2/3 full is part of the prpblem its located just a little below of the long leg of the L, so it is not reading any of the contents in the tank part that goes across the chassis, so it really only reads about 10 gal. The full sensor is about 4-5 inches from the top of the tank. So the fix will be two new senosrs, moving the 2/3 wire up to the full sensor and then install a new sensor for the full spot at least 2-3" higher. Both black and gray water have this problem. This should fix the wrong readings on the guage. Sensors are nothing but a stainless steel bolt,phillips head, witha piece of rubber hose about 1" longer followed by a large rubber washer, followed by a fender washer then a nut, when tighting the nut it cause the hose to expand and fill up the hole so there isn't any leak. Then put wire on and another nut, done.
Bill