Changes

Pour flush slabs (squatting pans) have a U-shaped facility partly filled with water under the slab. This U-trap overcomes problems with flies, mosquitoes, and odour by serving as a water seal. After use, excreta is manually flushed by pouring water into the pan with a scoop. About 1 to 4 litres of water is required for each flush. The amount of water required depends mainly on the design of the toilet and U-trap. Toilets can be made from plastic and ceramic, or from galvanized sheet metal. Note: The principle of pour flush slabs can also be applied to the faeces compartment of urine diversion toilets.