I've finally managed to get the pool to hold chlorine, and it's reading around 9ppm right now (I picked up some CYA, and it's been holding steady ever since). My pH is around 7.6. The pool is still a teal-ish color. I've been brushing the walls and floor as I can, which has stirred up a fair amount (the pool looked brownish the first night I did it), but I haven't been able to get the vacuum to work properly to give it a good sweeping.