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Posted by Bill S on October 19, 2007 at 8:54:22 pm EDT
In reply to Water purification in extreme conditions posted by Bill S on October 19, 2007 at 11:58:04 am EDT

Ed,
That's what I fear is the answer. However, after posting, I did recall that there is one solution for in the field, namely the PUR treatment that either is about to come out or just did (can't recall, and need to look it up). The problem with it is mostly that you have to treat in batches of 2.5 gallons at a time. This might be acceptable during the time we are moving from place to place in a Land Rover, but not during the hiking phases of the trek. Plus, I think it will be (or is) pretty costly.

Dave, you may have more information of the PUR approach.

So I am still looking for solutions. I should have noted that murky water also requires longer times for the chemical (iodine or chlorine) approaches, and may require increased doses of the chemicals. So the turbid water affects all the "standard" methods.

I really really do not want to interrupt the expedition to spend time dealing with intestinal disorders.

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