Quote Originally Posted by ohpoolboy
Check out the sticky at the top of this section ("Using the Bleach Calculator "). Download the Bleach Calculator. It has several other calculations including Borax for pH.
I thought that the Bleach Calculator only calculated how much Borax to use to raise the borate concentration to a certain amount, mostly to use to prevent algae. The last time I looked, the calculator did not figure out how much to add to change the pH by a certain amount nor the other way around.

Richard