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[pct-l] organic chemicals

At 06:19 AM 8/25/99 -0700, Owen Kittredge wrote: 
> Backpacker filters do not remove chemicals, 
> Filters with carbon elements do remove organic chemicals ! 

Yes you are right, filters with carbon cartriges will remove volitile
a very specific type of  chemical pollutant. They will not remove non-volitile
organics such as uric acid (urine). I was focusing on horse piss when I wrote
my last post.

I doubt that many backpackers use these heavier filters, though I DID use one
in India and Nepal.

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