...the environment inside the unit is perfect for Nature to go about the task of reducing organic solids to harmless water and gas...
Units are usually 500 or 1000 litres in capacity made of heavy duty plastic (polyethylene) with reinforced lids. They are light, quick and easy to install and can be put into existing buildings or above ground.
The 500 litre "Domestic" single seat is designed for the daily use a normal household of up to 10.
The 1000 litre "Communal" has two seats back-to-back and can cope with 20 adults or 30 children per day.
A separate urinal is an optional extra.
The 500 liter domestic unit, the 1000l "twin seat" communal unit linked into the bio-filter
The inner workings of the tank involve an efficient combination of screens and filters complimented by a hydraulic pump. This ensures the bacteria are circulated and mixed with all the material resulting in good fermentation and digestion.
In summary, the environment inside the unit is perfect for Nature to go about the task of reducing organic solids to harmless water and gas.
The volume of water that flows out is equal to the volume of material deposited (displacement) and is usually less than 500 mls per usage.