I would drain the tank, but the bowl would be another issue. I thought of every possible thing I could do to accomidate that. Bottom line here is that the toilet and shower are going to be one footprint on account of space. So I'm leaning towards a porcelain RV style toilet but worry about the service life of the flap door, since it would be used daily, every single day. How often would that seal need to be serviced I wonder? Could they be hooked up to a standard house toilet flange?
Originally Posted by petrel
A real household toilet would be nice. However, wouldn't the household toilet with rear tank take up too much space and run the risk of having the tank slop over going down the road?
It would certainly ensure enough water to solids ratio, maybe too much if you were boondocking.