I am using a Taylor 2006 at your recommendation. My CYA was 0 when I started but I did add 4lb of stabilizer a week and a half ago which should be enough to get to 20 ppm, but have not tested it because I only have the basic start up re agents for the Taylor which has only enough for a few tests. I was going to wait until I got my CC to 0 first but I just cant seem to get there.