<p>Jed
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<p>Since safe water is critical for a crude but quick souce google SODIS solar disinfection.
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<p>Take a 2 liter cola bottle partially fill with screened filtered water and shake like hell.
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<p>Fill the rest of the way with more water and cap it, then put out in direct sunlight. The combination of O2
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<p>UV aunlight and temperature will pasturise the water to a safe level in about 5/6 hours--- more is better.
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<p>If people can get a bunch of bottles going they can keep up a pretty good supply of drink water until a
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<p>better solution arrives.
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