I realized that I haven't been around to give you guys an update. In short, following my SLAM, pool maintenance has been an unmitigated success. Today's test was as follows:
Last year it was Di-Chlor, Cal-Hypo, Liquid Chlorine, PH Up, PH Down, Algaecide, whatever else the pool store could find (probably based in part on their expiring stock).
This year, I've bought a few cases of Chlorine and 3 gallons of Muriatic Acid. All we have to do is add chlorine daily and enjoy the pool. I don't think it has ever been clearer. This place really saved me. Another year of what we went through trying (futilely I might add) to keep the pool balanced last summer and I might have seriously considered filling it in.