I opened my 15x30x54" pool last week. The water was clear and I let the pump run for 24hrs. Then I used my new TF-100 and here are the readings.
I added 2 Gal of bleach to shock it, FC 12ppm
T/A-350!! I tested this 3 times to make sure.
I added 1lb Sodium Bisulfate and will check again in the morning. How can my T/A get so high? What would you recommend I do?
I also have 2 trichlor pucks in the inline feeder set to lowest setting. When the CYA starts getting high can I switch to bleach?