water well pumpjacks
Some posters here can't seem to tell the difference.. lol
Water well pumpjacks
Pumpjacks can also be used to drive what would now be considered old-fashioned hand-pumped water wells. The scale of the technology is smaller than for an oil well, and can typically fit on top of an existing hand-pumped well head. The technology is simple, typically using a parallel-bar double-cam lift driven from a very low horsepower electric motor.
Although the flow rate for a water well pumpjack is low compared to a jet pump and the lifted water is not pressurized, the water well pumpjack has the option of hand pumping in an emergency, by hand-rotating the pumpjack cam to its lowest position, and attaching a manual handle to the top of the wellhead rod.