Robert Walton wrote: http://www.weblife.org/humanure/images/fig8-4.jpg (box to take a single
bucket or bag-in-a-bucket. Use carbonaceous material to accellerate
transformation into compost---and segregate urine)
http://www.lowimpact.org/infosheetcomposttoilets.pdf (a two-chamber
toilet is most numerous now in Asia---using two plastic bags. When one
is full, use the other, giving a year or so for the first one to convert
the contents to easily-handled compost. The only thing of importance is
to remember you want aerobic decomposition----anaerobic decomposition
really, really stinks)
http://web.tusco.net/soiltech/facts.htm (I have done a great deal of
research on composting toilets in the past. Of the commercial varieties
I like Biolet the best---and own one. They all have a screened
vent-pipe to keep out the inevitable insects in the absence of a screen,
and remove odors which will exist until the manure is covered and until
it starts to decompose.
And of the Biolet models, I prefer the only fail-safe one, which has a
hand-operated mechanical stirrer instead of one that relies on
electricity---the K.I.S.S. is the best engineering principle to follow.
http://www.eob.alvsbyn.net/principlesEOB.htm (depending on how much you
want to spend on a composting toilet, you can evaporate urine from a
pan, or divert it to an outside removable container. Urine is
pathogen-free and can be used immediately around your bushes---or garden
plants for that matter, your cabbage, lettuce, corn, anything that
sticks out of the ground if you are a little queasy about root crops.)
http://www.worldtoilet.org/design/design_Hand_made_simple_toilet.htm
(I'm not really in favor of flush toilets of any kind, but it fits the
mindset of many people---here is one using a plastic bucket and a
simple, but effective sealing mechanism---the point of seal is a
water-trap, so it won't smell anymore than your thousand dollar Kohler
or American Standard flush toilet, with its gas-sealing liquid trap