Hello I've been looking at this site for the last 3 hours and decided to register. I have recently bought a 2008 Jayco "Eagle TT. Love it!!! I have a question. When I dump the black tank it doesn't seem to empty. When I step on the flush pedal to put in the toilet chemicals I still see toilet paper and some waste. I used the outside water hook up with the inside sprayer. It was still there. I filled a 5 gal. bucket three times and dumped into the toilet from inside the camper and still cannot get it to go away. What am I doing wrong?