99% of the time I'll use the bottled water because it is without a doubt cheaper. However, that being said, when doing some remote fishing, while away from the campsite or easy access to the bottled water, I'll carry in the back of the fishing vest a filter "straw" (maybe like the one I've posted below), that's for when it comes down to matter of I've got to. Right now it's in the little camper and I can't get to get to make sure of the name but I think it is the posted one.


http://www.amazon.com/Vestergaard-Fr.../dp/B006QF3TW4