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Handpumps

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[[Image:Handpump.jpg|thumb|right|200px|Liquid Gold - Children in the Central African Republic pump clean water from underground. Photo: Marielle van Uitert.]]
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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.
'''Lever Action handpump'''<br>
[[Image:bush pump.jpg|thumb|right|200px|The Bush pump is a lever action pump that can handle heavier usage by many people. Photo: [http://www.rural-water-supply.net/en/implementation/handpumppublic-overviewdomain-handpumps/bush-pump RWSN.]]]
Most deep-well handpumps are of the lever action type. The increased length of the water column in deep boreholes requires more effort to draw water and the lever of the handle makes the operation easier. Besides the conventional handle, there are also pump designs, which use a flywheel to operate a crankshaft for transforming the rotation into an up-and-down movement.
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