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Re: [at-l] UV by the numbers

I _think_ you've beaten this horse quite thoroughly. While the theory of 
portable UV water purification sounds good, the proof will remain in actual 
use. I have some reservations about depending on stirring the water for 
treatment, and would prefer some method of passing the water around the 
light source as it is pumped into the container. This _might_ decrease risk 
of breakage, but might complicate cleaning and maintenance of the bulb and 
tubing (particularly when freezing conditions are involved). I'd like to 
see independent studies of efficacy of this doo-dad, in any case.

BTW, how did your kids like the water fall? Got another Cohutta trip report?

Atlanta, GA

At 10:26 AM 8/2/1999 -0400, David  F. Addleton wrote:
>If Iíve missed something here, please explain it to me. But it seems to me
>that these estimates ≠ and thatís all they are ≠ would explain why the
>steripen should work to sterilize water, and why we can in some places Iíve
>previously described assume that solar UV has purified a mountain streamís

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