[[Image:Dry_toilet_iconPour_flush_slabs_icon.pngpng|right]]
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.
[[Image:dry_toiletPour_flush_slab.png|thumb|right|150px|[[Dry toilet Pour flush slab|Dry toiletPour flush slab]], in Mexico Bangladesh (for credits, click the picture)]]
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== External links ==
* General information about Pour flush slabs [http://www.who.nl www.who.nl]* [http://www.irc.nl www.irc.nl]* [http://www.wsp.org www.wsp.org]