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Sludging - Rota sludge

11 bytes removed, 05:40, 27 April 2012
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[[Image:Treadle_pump_icon.png|right]]
[[Image:Diagram of a rota sludge.jpg|thumb|right|250px|Diagram of a rota sludge]]
[[Image:Rota sludge in action.jpg|thumb|right|250px|Rota sludge in action]]
[[Image:Deep drilling with the rota sludge.jpg|thumb|right|250px|Deep drilling with the rota sludge]]
==Construction, operations and maintenance==
[[Image:Diagram of a rota sludge.jpg|thumb|right|250px|Diagram of a rota sludge]]
 
Cow dung is mixed with water to create a very low cost drilling fluid. It may take several weeks after the drilling is finished for the pathogens (bacteria) to die and disappear completely out of the well.
== Acknowledgements==
* The basis for the material on this page was obtained from a desk study shortly to be published on the website of the [http://www.practicafoundation.nl/ Practica Foundation], and from the [http://www.rwsn.ch/ Rural Water Supply Network], and specifically its [http://www.rwsn.ch/prarticle.2005-10-25.9856177177/prarticle.2005-10-26.7220595116/prarticle.2005-11-15.6127855822 manual drilling section].
 
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