Changes

Handpumps

No change in size, 00:39, 3 November 2012

→‎Reciprocating handpumps

'''Lever Action handpump'''<br>

[[Image":bush pump.jpg|thumb|right|250px|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/handpump-overview/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.

Winona

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