Yes, 'tis indelicate, but a welcome discussion among users of very small boats. The Folkboat Chimpanzee II has a bucket with a toilet seat on top. Even before I got the boat in the water, I bought a nice chemical head. I didn't get around to installing it, so I used the bucket all last Fall. NOW, I think I'm going to keep using the bucket. It's convenient and clean. The formula is to dip some water into the bucket, then pour in a slug of the same head chemical you use in the porta-potties. When you're done, overboard it goes, discreetly. The bucket tends to stay perfectly clean, but it has a lid, anyway. At age 33 I'm probably more environmentally conscious than most. But I and other "green" people I know have no compunction about pitching it overboard, as long as you're not in a crowded anchorage where people might be swimming, etc. (On the Chesapeake, anchorages like that tend to be near places with marinas and their free heads and showers. I go ashore there.) I stopped worrying about the issue years ago, when an environmentalist friend pointed out the quantity of unfiltered waste that went into the water courtesy of the Canadian geese who make the Chesapeake their home. If I ever get a bigger boat (god forbid) with a holding tank, I do think that's an even better solution, as pump-out stations are available everywhere these days. Cheers, John