I did not see the first pic before... love the floating 'bar'!
Since you will be draining your pool at the end of the season, I would just hit it with bleach every evening, and not worry too much about the stabilizer/CYA. You might use a tad more bleach, but you have a small pool, so it probably won't be that much different. I would use the Jasons calculator (see my sig) and figure how much bleach you need to get to 3ppm. Then just pour that in every evening.
Glad you still have your skin