Been DIY for 2 months now. Pool has been clear and trouble free the entire time. Have only had to add about 16 oz of bleach a day and about 8 oz. of MA a day. All chemicals have been in range (usually). Right now everything is "perfect" except FC at 2.5. CC = 0, CYA = 45-50, pH = 7.6-7.7, TA = 90
I noticed today green growing on the white plastic ports. Should I just bring FC back up to 5, or should I shock to 20?