https://www.youtube.com/watch?v=qYTif9F188E
http://waterislife.com/media/videos/index.php?id=8
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That's a pretty cool idea.
Great concept and presentation, but silver nitrate impregnated filters are not new.
I can't wait for the carbon nano tube filters to hit production.
Badass. I wonder if we all donated x amount of dollars if get would send us a few copies.
Wouldn't mind a few of those as well. Way cheaper and more portable than a berkey