It's first time for me and my girl friend use a composting toilet. The other part looks good to me. But I think at least you should clean up previous customer's poo (I know it is processed But still not ok to us), considering we paid 44$ cleaning fee. And the price we pay is same to a pretty good hotel in the downtown Portland. My girl friend got sick looking those poo and we booked a cheaper but better hotel right away at same night. Some RV has a better low flow flushing system you might need It.