I tried this some months before I started iodine, believed strongly that this was the way to go.
Nope; in my case it worsened symptoms on hypo T, made my digestion get even worse, and I was cold to the bone.
If you give your body what it needs, the ph will correct itself. a very low stomach acid is a good place to start. When I managed this part, by supplementing and eating right; my digestion trouble was more or less gone.
And it is a myth about acidic blood; as just a little PH change would kill you rather quickly. The body knows this, and have a reserve of magnesium / calcium stored in the bones, to use in worst case.