Originally Posted by jegstrup
My blackwater tank shows 2/3 full even after it's been dumped. It this just buildup on the sensors? I am clueless about what type of sensors this has.
Yes I would guess sensor is dirty,,, had that happen a few years back with our Flagstaff TT,,, you can buy a tank cleaner,,, I filled ours with some bleach in the water,,, let it set a couple of days,,, and it worked fine !!!
I am using the GEO method now,,, and adding the soap & calgon right after we dump,,, hoping it is cleaning while we are driving home !!!