Bag the Chlorex dude, it isn't dependable. You will be EXTREAMLY unconfortable if you get a bug. Boil the water. You just need a rolling boil. If there is junk in the source, strain it through a bandana before boiling. If you hear about a new technique from anyone, even me, check it out in the library before checking it out on you. And read, read ,read. I strongly suggest reading "Into the Wild". You are obviously smart and enthustastic, don't let that get you a case of the trots, or worse. Take good notes, and have fun.
Biscuits