I don't really want to partially drain the pool, so I'll try to get my chlorine levels up. The chart says I need between 8-15 ppm with 25 ppm to shock.
That's a lot of chlorine, I assume it's safe to swim with it that high? Also will the CYA go down on it's own if I don't use any more di-chlor or will I be battling this every year unless I drain it?

I'll order the test kit today so that I can keep track of all this.