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Two Stillwater, Okla., teenagers have come up with an invention to help tsunami survivors treat their water supply.
For the past month or so, Ben and Joe Banks have been fine tuning a compact filter designed to turn dirty water into clean water in less than one minute.
The brothers have donated five of their water filters to Faith Medical Missions, a Christian group leaving for Thailand. The group plans to set up temporary medical stations at five locations in six days.
Ben, 18, and Joe, 15, say their father, who is an engineer, gave them the idea for the filter a few years back. But the teens didn’t start actually building the filters until about a month ago.
Each filter can process about 20,000 gallons of water between cleanings and can be "back flushed" to clean itself.
The brothers are looking for a manufacturer to mass-produce their filters. So far, they’ve hand-made about 100.