The Airhead and Nature's head are different from
the normal composting toilet in that they separate the liquid and solid wastes. The liquid goes in the
front bottle and can be disposed of in a campground head or? The solids go in the rear compartment and are mixed with peat moss when the handle is cranked. It takes about 2 gallons of peat moss to start the thing. With just one
person using it full time the liquids need to be emptied every third day and the solids every 2-3 weeks. Since the solids are mixed with peat moss they do not smell bad. I usually service mine
late in the afternoon after having used it in the morning. The waste can go in the trash in a paper grocery bag. I'm not sure if it is the best thing for the land fill, but it is surely not as bad as all the paints and other stuff people dispose of. Since I use mine all the time I have a finishing chamber I put it in for a month before disposing of it. After that time in the big plastic vented tub it just smells like the peat moss. It is probably not pathogen
free like the big home units put out? Not sure on that.
A true home style large composting toilet has a
much bigger chamber for the wastes to decompose
in. The chamber must be kept at least at 55F or
the composting action will stop. That is why most
of the home ones have some sort of heating
element to make sure the composting does not
stop. Also, the large units have to evaporate all
the liquid and/or have a provision for overflow
of the liquid waste into some sort of container or
When I use the toilet I have a bottle of water/vinegar mixture that I squirt about a tablespoon's
worth in the front part of the bowl after each use.
It also helps to rinse the front liquid container after
emptying but it is not absolutely necessary.
Also, I do not put toilet tissue into the rear bin but
have a small covered bucket to deposit it in.
WARNING: Always remember to open the little door
that covers the waste bin. Forgetting to do so can
make an unpleasant mess.
For casual use of a RV I think these are just the
ticket. Here are links to the two small simple ones
that I am aware of.
Nature's Head Composting Toilets - The environmentally sustainable waterless toilet for Your Boat, RV, Cabin, Big Rig, Barn, Workshop, or Yurt!
Air Head Dry Toilet: Marine Composting Toilets - Environmentally Friendly Marine Composting Toilet System
Please feel free to ask any other questions.
Take Care, Larry