I had a old camper toilet andhooked it up don't use one.
I did and at first and the "waste" sticks because there isn't a puddle in there to brake the fall.
The temporary cure was put 2 X's of paper in toilet and cover the bottom of the bowl.
tom
I found a can of Pam kept near the portapotty/rv type toilets work wonders.
A quick spritz before #2 and they don't stick to the dry bowl
Remember the TV ads about "cooking with Pam"?
So far haven't seen a TV ad about pooping with Pam