High performance human-powered well pump so strong and efficient,  it exceeds the peak performance of large-diameter windmills in gallons per minute. Depths far beyond what could even be considered possible with a hand pump are now reachable with the WaterBuck Pump.

Videos of pump in operation

http://www.youtube.com/watch?v=TGkWzBSE9lY

http://www.youtube.com/watch?v=H2R1BxYPErI

http://www.youtube.com/watch?v=KlnyQXB9U-8

http://waterbuckpump.com/