G029: Pit latrines for special circumstances

Whilst pit latrines are often the most suitable form of sanitation in low-income communities, there are some situations which present particular challenges for designers and builders. These situations include locations where rock is close to the surface, so preventing the excavation of a deep pit, or in cold climates where solids do not decompose as readily as in warmer environments. This guide examines the problems these circumstances present and suggests ways in which some of the difficulties can be overcome.