Thank you, Archus, I went through the article thoroughly. I will consider seriously my practice.
I feel I can use the drops to level up the water quality. I measured a 2 point pH increase with 8-10 drops per liter. As of now I don't trust that filtered water is clean enough, since the filters do not remove the ubiquitous Chlorine and Fluorine, and much of the rest of the pollution.
I don't have access to good spring water or reverse osmosis.
I may have mineral deficiencies. My hair is more beautiful than ever though, so I don't know what signs to look for, besides the obvious joint problem I have. My bones are fine - never broke one single. Just injured joints many times .. countless. It runs in the family too - who do not drink distilled. Decisions sometimes are complex to make.
Thank you
DL