slimy pool bottom and sides...high chlorine

[Charlie_R]

So I understand the idea that I need to correlate the chlorine with my stabilizer and not industry standards.

True. "industry standards" have been proven to be not so good here and at so many other BBB focused forums

I am just concerned about the cc and slimy pool. I thought that chlorine levels of 30 for two days would do it. Is that wrong?

You need to keep the shock level -- as outlined in the best guess chart -- for as long as it takes to clear the pool.

I need to make sure that over night the chlorine stays high and then do I just let it naturally lower? That could be a while.

Three things to know when your shock is done: overnight FC loss =<1ppm; CC =<.5ppm; water clear. Keep FC high 1 additional day, then let drift down naturally. It will due to sunlight (UV) breaking down the chlorine.

Does the low chlorine and high stabilizer make for algae growth?
Because at the last testing the fc was in line with stabilizer but the cc was so high

Yes. With a high CYA, most of your chlorine is bound and is quite a bit less effective for both sanitation and algae prevention.

High CC means that the unbound chlorine is combining with stuff you don't want in your pool. CC = Combined Chlorine. Means it's killing the bad goop.

One more thing. As long as you are at shock levels, you need to be brushing every surface in your pool, including under removable steps if you have them, and inside the light holder if present. Algae loves to hide in places like that.