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Micropur tablets
June 10, 2012
A backpacker who is a retired bio-chemist told me about these. No mixing liquids, no odor and stain of iodine, no bulky filter, no ultraviolet light. The tablets stay dry and unbroken in individual foil packets. You use one per liter. The directions say wait four hours, internet instructions say two hours, the chemist said 30 minutes is enough for everything but viruses. I play it safe, treating several liters overnight. The water comes out clear and, in my experience, tasteless.
Pros: Lasts forever, Performance, Ease of use, trustworthy brand, Cons: Cost