Types of provision
The type of toilet described is based on the method of disposing of the sewage, and related requirements for the structure and other aspects of construction such as ventilation, washing facilities and so on. There are five possible options for sewage disposal, as follows.
Composting toilets
In these the toilet seat is set above a box or hole into which all sewage accumulates. If the moisture content can be kept reasonably low, for example by the addition of soil, ashes or bark, then the material breaks down into a relatively odour-free compost, which can be emptied from sewage receptacles at the back of the toilet building and safely disposed of in a suitable location.
There are various proprietary makes that have developed this type for relatively low-use sites...
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