The CYA was just a guess. The water line was closer to 30 than 20, so just estimated. It is somewhere between 25 and 30.

Yeah, the pool is sparkling clean until the kids (and dog) get in. We haven't finished all the landscaping, so there is still a lot of dirt around the pool. The kids get out, get back in, and there is all the dirt. Oh well, just need to vacuum every so often, not much longer until we get grass.