Went to out of town softball tournament this weekend. When we left on Friday, all was good. Checked it today and pool was cloudy(you could strain to see the bottom.) Put in a gallon of 10 %. After an hour it barely turned pink. Put in another gallon. After an hour, it was at 2. My CC's are 0. Normally, a gallon of 10 % will take me up 4.5 - 5 ppm. Thoughts?