Overview
A VIP latrine offers improved sanitation by eliminating flies and smell,
through air circulation. The addition of a chimney draws air currents into
the structure and through squat hole. Odours rise through the chimney and
disperse. The structure of the toilet means that any flies attracted to the
pit through the squat hole will try to escape by heading towards the
strongest light source, which comes from the chimney. The flies exit is
blocked by a wire mesh so the flies eventually die and fall back into the
pit.
Source: www.practicalaction.org. One can also have a double vault VIP. Only one pit is used at a time. Once the pit is full, the second pit is used and contents of the first one are left to decompose and the second pit used. When the second is close to getting full, the decomposed matter from the first pit is removed. Advantages ![]()
Disadvantages Since pit latrines involve soil absorption, there is a danger of groundwater contamination
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