Most chains in North America sell distilled water by the gallon for 89 cents to 99 cents. The refreshe brand is good, so is the vitamin cottage and the whole foods 365 brand, if you're stuck in an urban city with no distiller of your own. Just add minerals and amino acids and whatever else you need, and you wont be drinking "empty" or unbalanced water. Humic and Fulvic acid blend water is good to drink too.
I advocate distilled water especially for cooking, and for drinking when you do not know what is in your surrounding water system (high lead, cadmium, fluoride, estrogen, etc). If you have your own land and access to fresh water there are other options which would purify it further. I've seen a set up where a guy would re-route water from a river, in timed sequences, into a large boiler, then into a cooling tank, thus removing any water-borne illness-causing agents like giardia, whilst getting the cleanliness of non-metallized water. Iodine tablets are ok if you are on a camp or a trek and don't have any testing equipment (expensive but a worthy investment for transitioning to off-the-grid or rural life).
I don't own a car, so I'd rather not have to carry gallons of water for a mile multiple days a week. I suppose I could use shipt or something but that is a bit costly just for water...
I'm fine using a high quality pitcher-filter like the one I mentioned. Idgaf about "empty" water since I already supplement a lot. I am really only concerned with flouride and potential pharmaceuticals in the water supply; can you really guarantee that bottled water brands are clear of that? I don't really trust any brands unless multiple people have tested them.