thanks for all your replies. You have given me a lot to think about. I am Cody Lundin disciple, which is why I am a fan of iodine. I am more worried about being able to purify large amounts of water (multiple quarts to gallons), so a straw may not fit the bill.

I will take a look at the chlorine dioxide tablets as those sound like they might be the ticket!

Thanks!

Garrett
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On occasion of every accident that befalls you, remember to turn to yourself and inquire what power you have for turning it to use. - Epictetus