Dietrich, thanks for sharing a picture. I see that the Thetford Curve is more like a traditional porta-potty, but well worth considering since we wouldn’t have to cut a hole in the camper. Have you had any issues with yours?
Have had no issues. Things I like about it; taller than other porta potties, battery operated flush pump, a floor mounting plate is available, Swivelling dump tube like a cassette.
Wife likes it a lot…absolutely hates pit toilets.
The only negative is that a full black tank can be quite heavy and it does not have wheels. I carry a folding dolly for that and other stuff in camp.