Lowering TA with Dry Acid Or Muriatic Acid

[CelticDaddio]

So my procedure to lower my TA is

1) Lower pH to 7.0-7.2. (Muriatic or dry acid are both fine) This lowers T/A somewhat.
2) Turn on the fountain
3) Lower pH again to 7.0-7.2, bringing T/A down some more.
4) Turn on the fountain again
5) Repeat 1-4 until T/A is in the desired range.

Is there a formula for how much Muriatic acid, or dry acid to add to reduce the ph? I.e. 1/4 cups of muriatic reduces pH by 0.5, or is it not that simple?

That's all you need!