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Handpumps

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[[Image:Handpump.jpg|thumb|right|400px300px|Liquid Gold - Children in the Central African Republic pump clean water from underground. Photo: Marielle van Uitert.]][[Image:pump altitude.jpg|thumb|right|400px300px|Example: a treadle pump is promoted as capable of lifting water from 23 ft. at sea level, the graph indicates that at 8000 ft elevation a loss of 8.8 ft. of suction capacity will result. The pump used at this elevation is now capable of lifting water from 14 ft. Chart: [http://www.pacificliquid.com/ Pacific Liquid & Air Systems.]]]

Many different kinds of handpumps are frequently installed on hand-dug wells and boreholes in rural areas, including many drought-prone areas. They facilitate a contamination-free method to extract water. Most pumps are positive displacement pumps and have reciprocating pistons or plungers. There are suction pumps, low lift pumps, direct action pumps, intermediate life pumps, and high lift pumps. For details on these types, look them up in [http://www.wateraid.org/uk/what_we_do/sustainable_technologies/technology_notes/244.asp Technology notes: Handpumps] (by WaterAid).

* Area of use: Rural and low-income periurban areas, where groundwater tables are within 12m of the surface.

Examples of the Direct Action handpump: [[Tara pump]], [[Malda pump]], [[Nira AF-85 pump]], [[Canzee pump]], [[EMAS pump]], and the [[PVC pumppumps]] has a direct action version.

====Rotary handpumps====

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