how interesting...thanks for posting this does using reverse osmosis water 
prevent the 
  SODIS requires relatively clear water with a turbidity less than 30 NTU.? 
thanks deb


"Jonathan B. Britten" <jbrit...@cc.nakamura-u.ac.jp> wrote:
  The link Marshall provides has another link to a really first-rate 
group that provides all the details!

See: http://www.sodis.ch/Text2002/T-Howdoesitwork.htm

This one is worth printing out.

JBB


On Wednesday, Apr 5, 2006, at 02:10 Asia/Tokyo, Marshall Dudley wrote:

> Lost and have some dirty water from a spring or lake, but no CS or way 
> to
> build a fire to sterlize it? Put it in a plastic (not glass) bottle 
> and
> leave it in the sun for 8 hours.
>
> http://www.worldchanging.com/archives/004261.html#more
>
> Marshall
>
>
>
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