Things are looking up. The pool is no longer emerald green but much a much lighter shade. It is still cloudy. This AM the values were: CYA 50, FC 8.5, CC1.0, TA 130 and Ph 7.5. I have had to add some more water to the pool because of the backwashing.

Shall I still put in the 4 gal. of chlorine this evening? I have some Super Shock (Kem Tek) Trichloro - s- triazinetrione that I had before I joined BBB. Can I use any of that?

When using the pool calculator, how can I tweek it to tell me shock levels of chlorine and not just maintenance levels?

Thank you for your help.