Thanks for the reply.

The pool is pretty clear in daylight. I have some small white particles that I can see underwater with goggles. I can also see at night in front of the light. There seems to be a lot of them. Cloudy haze in front of light at night and can see particles. Really fine and mostly float on top and skimmers (2) don't seem to be able to pull them down. I figure this may be a problem for a different post.

Thanks for the tip on the FC test.

I have poked around the Taylor website some and will look for the information you suggested. I will work to get the CYA bumped up. The advice on the sampling is really appreciated.