Opened up pool as per usual given pool store instructions - 4 pounds of dichlor, waited an hour, added 1 qt 3-month algaecide, added mineral pac to XL Pro. Next day, water cloudy, T/A-140ppm, F/C - 0, T/C - 5.0, CYA - 30, pH - 7.4. Pool store said chlorine was "bound up" and I needed to add 9...