I got home from my trip, so I, my TF-100 test kit, and my pool were all in the same place. I went out to test the water, and found a light dusting of green on the stairs and the shallow end.
I brushed the pool and tested the water.
The color-matching K1000 test gave me that PH, and a "Chlorine" of 0.5. Not sure how that relates to the numbers the drop tests gave.
I'm a little worried about the numbers, as I've not run the tests before. I'll run them again tomorrow and see how they look.
I'm surprised CYA is so low. It's on the high end of what's suggested, but this pool has never had anything but 3" tablets in the floater, and I'm surprised it isn't worse.
CH seems high, and that's an issue because a full drain isn't possible - water restrictions make that so. I can have the water filtered via reverse osmosis, as there's a new company in the area that will do that, if that's needed.
PH and TA are both high - TA more than PH.
FC is a touch low, but may fall fast - there's green.
Green means time to SLAM. Have to get some chlorine.
What else do I need, and what to do first?
I took a picture; I'll get it posted in a bit. You can still see the bottom, just a dusting of green on the stairs.