Hey, thanks a lot for the help.

1. Pebble Tech pool. 11,940 gallons. Sand filter. Pump runs 7 hr. during the night and 1 hr. during the afternoon.
2. I use 10% chlorine, 29% muriatic acid regularly. I have 2 trichlor pucks in my floater right now to help with chlorine and to add CYA. I have also added borax. As I mentioned, I’ve put in polyquat 60 a few times—once I put in a whole bottle, but then later just a few ounces per week. A month or so ago was the last time I added PhosFree just because we already had it from last year.
3. 6 weeks ago, the TA was 230. I followed the procedure outlined here to get it down so I could add borax.
4. FILL water pH 7.6, Cl 0.5, TA 110, CH 250.
5. There are no water features in the pool, although we have a “aerator” nozzle that can be turned on as needed. I only used this when trying to lower the TA.

My water test today:
FC 6, CC 0, pH 7.8, TA 90, CH 280, CYA 40, Bor. 40

I have the solar cover on and the water temp at 7:30 am is 83 F.

The algae is still there, although not as bright green as it has been at times. It is about 3/4 of an inch ABOVE the water line. Will I need to fill the pool more to affect this algae or will it get enough chlorine as is?

Two months ago, I fought off what I believe to have beeen mustard algae in the form of brown “dust” that had been there for over a year but I didn’t know what it was. There is no sign of the brown dust and the pool water is as clear as clear can be.

Tabitha