I can't recall if I tried adding celtic Sea Salt to his drinking water or not. I add a pinch when I made his raw dog food. He's been on raw food most of his life, and he's 8 yrs. old now, very healthy and active. I usually buy the raw dog food, but I made it for the first time yesterday for a couple reasons.
I'll have to buy distilled water first then I'll put a little celtic salt (the salt is supposed to have 90 minerals in it) in one bowl with the distilled water and leave one bowl of untreated tap water out and see which is lowest in the evening. I'll get back to you on that.