So noted. Actually I was getting 3 packs of Clorox at Costco for $8 each, better than walmart generic, and maybe a little more reliable strength-wise.
Now that cl levels are stable (5-7) I am noticing pH is wanting to creep up. I've added acid twice in a week. Before, it seemed like my pool water would naturally drift lower in ph, and in was adding the borax. Could be cooler temps at night. tA is 110, not much change. Will monitor for a while, but I was under the impression acid use would be rarer.