Thanks everyone for all the detailed information. I checked the pool this afternoon, and got the following results using a Taylor K-2006:
Water temp: 71 F
FC: 7.0
CC: 0
pH: 8+
TA: 90
CH: 425
CYA: 80
Phosphate: 0
Salt: 2200
As you can see, the pH is back up to 8. Without adding borates, I'm going to work on keeping the TA at a lower level. chem geek suggested 70, so I'm going to shoot in that direction. It's probably going to take several weeks before the TA begins to drop due to adding liquid acid.

I'm also going to check it mid-week, say Wednesday, and report results again.