I use a Pur charcoal filter in a squeeze bottle to pre-filter water. It's fast, does a great job removing sediment, removes most all of the nasty tastes, and they're pretty cheap. The water bottle I use very light and it flattens out when not filled so it packs small. I got them for $1 at a "Dollar Store" and the Pur filters are around 2 for $5-$6.

Originally Posted By Pika
I have used the MSR Sweetwater to obtain useable water from some pretty dubious sources including one with a dead coyote floating in it


Damn... You are one seriously tough dude Pika!
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