Mystery pump info request

By Staff
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I would like to know what sort of pump this is. Is it a pressure-type pump, as it does not seem to have very big pistons, to get higher volume?

It was used to pump water from a creek, but there was a much larger Ruston-Hornsby pump there too, which was used to fill a plunge-dip to dip sheep.

Phil Dowe, Queensland, Australia;

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