I have a SW pool 56000 gal (no typo) My FC 3, PH 7.5, calcium 160, CY 0. salt at 2900ppm, Pool is crystal clear no problems, Question is do I need to add stabilizer to bring CY up? I have not added any Algaecide, Clarifier or anything this year, opened pool and added 6gal of pool shock and 2 1/2 gal of muratic acid to lower PH from 7.8 to 7.5. All I ever add is muratic acid to keep PH in check. Any help would be great.
Rich
Rich