Many toilets will mix the solid waste with composting agents kept in the tank, like peat moss or coconut coir. Some users also recommend squirting cleansing liquid like vinegar or Dr. Bronner’s ...

They've fixed that; now when you lift the toilet seat, the trap doors open. There is a lot of tech in this toilet; mixer motors, sensors, lights. It's priced accordingly. More at Eco-Ethic ...

Christopher Porter / Flickr / CC BY-NC-ND 2.0 Wanting a more home-like experience, we bought a Sun-mar Centrex composting toilet with a china bowl and a flush mechanism.

Most composting toilet systems let urine evaporate through a pipe to the outside world. At the same time the modern installations use a small amount of electricity to mix the faeces into what's ...