Pete:

I followed the thread you indicated. Amazing stuff. I also googled several of the products and terms I found, for even more interesting info. Since the SODIS (Solar Water Disinfection) precess relies on a dark bottle to heat the water to 70 deg. C, (or a clear bottle on a dark surface or reflective surface, here is my question - wouldn't this process also work with a US GI canteen (dark green) or British MoD water bottle (black)?

Thoughts most welcome. Doug? Chirs? MybrotherPeanut?

.....CLIFF