I'm curious about taste of water sufficiently treated this way. Once I was near about Mile 20 of the Ouachita Trail and found a signed spring flowing from a metal pipe and was so happy that I dumped my one bottle full of nasty tap water and filled it from the spring. It tasted like a mouthful of pennies. In a few hundred yards I dumped that and replaced it with very nice creek water. Now I taste before dumping old water.