Update
The wife and I have been working this issue for a week now! Here are the current numbers as of 9pm tonight:
FC 24.5
Ta 110
Ch 20
Cya 60
How do those numbers look? After a week we are still fighting a cloudy pool. Most of the green is gone and it has cleared up more in the last 2 days than last week. We had some issues with pump and filter. In the last 24 hr we have vac and scrubbed the pool 3 times and back washed once normal press is 12 and we are back washing at 15 pump and filter are back running normal now. The FC has been maintained above 24 all week. We plan to check it again first thing in the am to see if we have any overnight loss. I'm getting a little impatient waiting for this to clear up. I'm thinking about trying to add some DE to our sand filter tomorrow to help this out. Should I? If so how much should I add for a 22" sand filter? Any other suggestions? Btw I'm the husband of the original poster if you haven't figured it out.