I don't think my CC reading is accurate. The only way I have to test it is with AquaChem test strips, and when I shocked the pool, the CC went way up along with the FC. (???) I need a better test kit, but is it wise to buy one now, or just wait until spring?

I shocked to 20 ppm with ultra bleach last night, and the level is still holding well this morning. Pool looks pretty darn good and is clearing up.