Here is where I am at this morning. Pool is no longetr green but is cloudy. I received my test kit this morning and here are the results of my first attempt:

Total Cholorine: 22.5
Free Chlorine: 21.5
pH: 7.8
Alk: 200 (this is significantly higher than last test at the pool store)
Tot Hardness: 375 (also significantly higher than what I last received from the pool store)

I have not yet completed the CYA test, pool store has consistnetly tested at 70

I backwashed the sand filter just now. Any input as to next steps?

thanks,
jojasc