It's important to not just guesstimate and pour things into the pool. You should be able to get a FC measurement in the next day or two as the chlorine starts to dissipate. Once you can get accurate readings, post them here and these folks will tell you exactly what to do. But the first part - to get accurate readings - is up to you. Your Ph reading is also somewhat suspect b/c usually when FC is "off the charts high" the Ph gives a false high reading. How'd you determine your CYA is 200? Did you dilute your sample?