The Clivus Multrum process works on the same principle as an ordinary garden compost bin. Waste is collected in the composting chamber along with carbon rich material such as wood shavings and garden clippings to obtain a good carbon/nitrogen ratio for composting. Here the materials gradually decompose in the chamber's aerated environment. Baffles and air channels in the tank control air flow and this accelerates the composting process. A continuously operating fan pulls air down the toilet fixture and out through a vent stack creating a completely odourless bathroom at all times.
The Clivus is the most reliable and efficient composting toilet because of its superior design.
An aerated micro-environment is crucial to any composting process and is maintained through the drawing effect of the ventilation fan and air channels through the compost pile. This unique system ensures complete decomposition of the waste during its long residence time.
A large inspection door is also unique to the Clivus and allows the user to easily check that the system is functioning efficiently.
Another design feature of the Clivus composting chamber is that access to the old and new compost is kept separate. The older, fully composted material settles to the bottom of the chamber where it is easily removed via the front access hatch.
The Clivus system is based on a “continuous” composting process in one large chamber, as against multiple smaller chambers that require a restart of the process after emptying. As the organic material decomposes it reduces in volume by up to 90%. The compost pile is therefore always “shrinking in the middle” whilst new material is being added to the top, and finished compost is removed from the bottom of the pile when appropriate.