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Treadle pump

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[[Image:Treadle_pump_icon.png|right|80px]][[Image:Treadle_pump.PNG|thumb|right|250px200px| The treadle pump is used in Bangladesh. Photo: Netherlands Water Partnership.]][[Image:treadle pump2.jpg|thumb|right|250px200px|A simple, bamboo treadle pump can be constructed. Photo: International Development Enterprises.]][[Image:malawi treadle pump.jpg|thumb|right|250px200px|The Malawi treadle pump is a high capacity treadle pump designed to lift water from shallow wells & surface sources. Photo: [http://www.skipumps.com/malawipump.htm S.K. Industries.]]]

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The treadle pump is a foot-powered water pump widely used in Asia and spreading in Africa. It consists of two metal cylinders with pistons that are operated by a natural walking motion on two treadles.

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! width="50%" style="background:#efefef;" | Advantages

! style="background:#ffdeadf0f8ff;" | Disadvantages

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| valign="top" | - Simple and cheap

==Construction, operations and maintenance==

[[Image:TreadleDiagram.png|thumb|right|250px200px|Treadle pump diagram. Click image to zoom. <br>Photo: [http://en.howtopedia.org/wiki/How_to_Build_Human-Powered_Water-Lifters Howtopedia.]]]

====Design====

* Cylinder diameter: 3.5 inch and 5 inch (90mm - 130mm)

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