I don't know, Steve
By the way, thanks to you and Peggy for the info on the Airhead. If I recommend your solution of peeing overboard to my daughter or female friends, I can assure you they will never come back.Nonetheless, given some disadvantages to some, you have no idea what I have to do during the winter when I stay aboard and all pump outs are closed for the season. It is imaginative and clean, sort of a porta potty. The great advantage I see for someone like me who likes to live aboard and hates to pump out, is precisely the storage capacity with no odor--assuming this holds true. this would be a blessing. Removing small tanks of urine every now and then, to me, sounds a better proposition than the pump out, which is a hassle and $10 every time you do it, plus the wait, at times. As for the compost, once a season is not bad, given what you have to do to decomission a boat. About putting the stuff in flower beds in the marina, well Steve, I think you want me to get kicked out of the marina.Kidding aside, thanks for the comments and the ideas.