If you have the money for it a water bottle with a filter (even just the carbon Brita ones) improve the taste immensely. I use an Epic water filter for everything and it makes nearly all water taste good*.
- The only exception I had was the Atlanta airport I have no clue what the fuck was going on their but the water was disgusting.
Also worth noting: don't use a filtered water bottle for filtering water that has contaimints you are actually worried about consuming; none except for grayl actually match their claimed results with third party testing.
This is just not true. When my wife's family moved to my home state they all though that the water tasted "sweet". Good tasting water definitely exists.