Bottled Water

Ok, most bottled water tastes weird to me post op. it tastes like I am sucking on a rusty 'ol pipe. I can't stand the "hard" taste. I have been thinking about breaking down and buying one of those portable water purifiers built into the water bottle. Does it help? Which is a good brand? Tap is equally nasty. For water post-op, I have been adding either crystal light or Mio to all water I drink. It concerns me I am drinking so much artificial flavor nonsense. It can't be good for me. I don't really want to do the lemon squeeze or cucumber in water because it is not that convenient for me. And to think I was a huge water drinker pre op. I used to chug chug chug and like the taste of water.