Hi aylad,

Leaving the alk alone sounds good to me. Should I still maintain some kind of limit or just let it go where ever?

As for the borax, I don't use it to raise pH. I'm under the impression it helps maintain pH (minimizes pH bounce) once the pH is where you want it. So I only add it occasionally to maintain about 50 ppm borates. I'll get a current borate concentration next time I test it.

jonnymac