After draining half the pool due to high cya here are the new results. Any input most welcomed. Water is pretty good but not crystal. I still have yet to deep clean the sand filter. By my calculations I ca turn pool water over in an hour and I am running sand filter for 3 hours and some days 7 but still not crystal clear but again not bad. Thanks all.
Edit. I just pretested FC this am and at 7 now from yesterday [9.5]
Cya 38-40 yay [was 80]