Using the calculator, I surmised I needed 110 oz of Borax and 4 gallons of 6% bleach to get to 7.4 PH and 12ppm CL. I added the bleach and it's at 12ppm. WOOHOO!!! But I added 76oz of Borax and my PH may have risen to 7.0 It's hard to tell on my red phenol test. It looks to be between the 6.8 and 7.2 color. I get the same results with the 6 way strip test from Walmart. Any ideas? From the calculator 77 oz of Borax should have raised my PH to 7.2. What am I missing?