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How a Brumby Pump works

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In this video you see a deep-well pump that, instead of requiring 240 volts and a heavy submersible motor, instead uses compressed air and a very simple mechanism:

As the video demonstrates, you would not use this pump to plug directly into a residential plumbing system because of the air mixed with the water. But for filling a tank in a remote area it could provide a rugged alternative.

This page has a nice cutaway showing what it going on inside a pump like this:

How does it work

More info: The Amazing Submersible BRUMBY Pump


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