We got the manifold all plumbed in last night, and we're getting ready to power up the Autopilot.
Here are my numbers:
I'm going to raise my cya to about 70, but my real concern is with the low ph. After getting the alk down to 90 (from 120) using acid and aeration, I can't get the ph to budge any higher than 7.2 (after 4 days aeration--fountains & returns only.)
Is 7.2 acceptable to start the Autopilot or should I add Borax to tweak the ph higher? I know the target is 7.5, but won't the ph creep up when the Autopilot starts producing chlorine?