Make your own distilled water.
"Distilled water is water that has many of its impurities removed through distillation. Distillation involves boiling the water and then condensing the steam into a clean container."
If you don't meet the requirements to do so, sell your house and move to a mountain side.There you can get some buckets and fill them up right from the water stream.
(transylvanian random stream)
I happen to live in such a place.If I drink directly from the stream I suddenly feel alive and if I feel sick I get healed instantly.Hard to bealive?Try it.