Aquamira or Pristine <img src="/forums/images/graemlins/smile.gif" alt="" /> Doesn't have a taste, Used right it kills everything, and while it weighs a bit more than tablets it doesn't weigh very much, and you don't need to wait nearly as long. I hate filters - always break 'em or clog em. Just last year alone on hikes I probably treated water for 4 different parties in campsites with my aquamira when their filter had clugged up and/or they broke it.

IMO everything else is just overcomplex technological junk to break. = Aquamira has no moving parts <img src="/forums/images/graemlins/wink.gif" alt="" />