Just to update! The link to the Nature’s Head manual is now in the listing, the printed manual is in the bathroom, the coco coir is available in the bathroom fo guests, and the most recent guests have allowed their teen age children and grand children to pee in the toilet and overflow it one week, not add any coco coir with chronic diarrhea and over flowed it one week, and are fixing to do the same this week. The previous guests overflowed the pee bucket (due to inattention) the week they were here. I contact each guest in advance to make sure they know what they signed up for. I think Americans are just pitifully ignorant and inconsiderate. Good thing I found another tumbling composter cheep, locally. I am going to need it.