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water well pump
A water well pump is a pump that is used in extracting water from a water well.
They include different kinds of pumps, most of them submersible pumps:
*Hand pump, manually operated
*Injector, a jet-driven pump
*Mechanical or rotary lobe pump requiring mechanical parts to pump water
*Solar-powered water pump
*Pump driven by air as used by the Amish
*Pump driven by air as used in the Australian outback
*Manual pumpless or hand pump wells requiring a human operator
The pump replaces the use of a bucket and pulley system to extract water.
==External links==
*(Water well pump article )
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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