I would like to here more from Teapot about bringing CYA down with high chlorine? That sounds interesting, never heard that before. Would be interesting to compare the cost of chlorine to the cost of a refill.

You could keep your CYA at 140, and your FC at 8-15 (probably on the higher side of that), but your shock level is more like 25ppm. Can I ask why your CYA is so high? What do you use in your pool. You shouldn't be using anything with CYA in it at this point.

I use DE in my filter, works pretty good, and I also occasionally use polyquat algaecide as a clarifier (maybe 2 times a year). BUT, the reason I have to do these things is my filter is too small. Way too small of a surface area and way to big of a pump. Everything gets pushed through and beaten into smaller particles (my theory), so you end up with a cloudy pool.

I had to order DE off Amazon, Clorox brand, came in a huge box and was pretty cheap.

I have never used the skimmer socks so I don't no how they work, I know some people on this forum like them.