Hi, Marie,

I'm "pontificating" from memory so take all this with a grain of salt. I'm fairly sure Ben recommends pH adjustment first. If you do the Alk first, it makes it somewhat more difficult to adjust pH because of the increased buffering.

As you know, when one moves, the other typically moves with it so the recommendation to do it incrementally should be adhered to.

I have adjusted my water from 6.8pH and 30 Alk three times. Each time I was able to adjust the pH to 7.3 and then bring the Alk up (the next day) to 90. I saw no increase in pH with the Alk adjustment tho I know I should have. I can't explain why but that's the affect I got.