I have a SW pool 56000 gal (no typo) My FC 3, CC 0, PH 7.1, Calcium 90, 240 Alkalinity, CYA 0. salt at 3300ppm, Pool is crystal clear no problems. Trying to lower TA and maintain proper PH TA was at 300 three days ago, is Calcium ok or do I need to raise to 200 and I will be adding stabilizer to...