I think it's because the "bad" taste of water (bitter, sour, or kind of metallic) in the areas where I live is so very strong, that "good" water is tasteless to

I think it's because the "bad" taste of water (bitter, sour, or kind of metallic) in the areas where I live is so very strong, that "good" water is tasteless to me by comparison. I'm sure there's something there, but it's really subtle.