pj, good hijack, I was gonna ask him the same question. Actually, I'd love a thread on tent colors - you know, everyone's preferences and reasons. Me, I'm a pirate camper...
Old Goat here did get sick from wilderness water one year when she trusted a boyfriend to purify water from a beaver-inhabited lake. Never again. "Lost" the giardia only after multiple rounds of Flagyl (metronidozole); "lost" the boyfriend more easily. *WHEW* Still, backpacking alone gets old fast.
This is a great discussion and rather well-attended for something that has supposedly already been dealt with. I'm looking seriously at the Steripen and thinking that it would be smart to have more than one method in the arsenal, hang the weight. Well, not hang it but maybe worth a few ounces. He, keep it going.