[liveoakhs]

My husband put hydrogen peroxide, calcium hydroxide, magnesium sulfate, potassium hydroxide and MSM in the hot tub (no chlorine and its well-water, not deep) under the premise that it will be healthy to lower the pH of an overacid body and he thought that also calcium and magnesium and potassium could be absorbed into the body with good effect. I think he is cracked! What reactions could occur from this mix of compounds? And what effects might it have on a human body. (Amounts of the salts put in are quite small.)

[savoy7]

small amount won't do much.

Some bases were added.  In larger quantities the pH would not become lower, but higher (more basic).  

The calcium and magnesium ions would make the water hard.  Those ions tend to interact with soap; not allowing soap to be washed off with water.  That would make your skin feel scummie (spelling) and leave a white residue on your drain after it dries.

[liveoakhs]

Yes, that is what I meant to say - raise the pH and make it more basic. Just a slip, though I am a novice. My husband did notice that there is white residue and scum as you say.   SO otherwise there is no reaction that would occur wiith any negative effects for life? - Well, that's a relief.  Thanks.

[Mitch]

Sounds fine to me. I think your health will be fine with those compounds at even higher concentrations. The only real problem is a mechanical one, now you will have a salty/filmy build up on the machinery and around the tub.