[mudman]

I'm comfortable on flat ground carrying over 80# in a good pack with everything distributed well. I'm comfortable with 50-60# for days on end over tough terrain. It all depends on your packs and the route. If your main goal is just to get stuff there and it isn't too long of a hike or too tough of on then take as much as you can get the pack to hold.

If this is a place you plan on returning to think of building a rainwater collection/holding setup. Then you just have to pack in you filter in the future.