Never tried this one as it is newer tech, but seems like a perfect solution if anyone is concerned at all about drinking from the sources down there:
http://www.rei.com/product/837824/sawyer-squeeze-water-filter-plus
http://www.youtube.com/watch?v=KXGDCp9EC1Y
... then add one of these for viruses (or drops) and you don't need to bring any water aside from a single bottle:
http://www.rei.com/product/799003/steripen-adventurer-opti-water-purifier
Edited 3 time(s). Last edit at 07/26/2013 03:54PM by mohave.