This is my father in law's pool I've been working on. The pool was left alone for about a year and got all green. He's tried this year to clear it up under the advice of the pool store locally. It would turn less green then it would go back to green again. I found this site recently and was able to convince him to let me work on his pool. We ended up going through so far about 18 174 and 182oz bleach bottles.
I kept the FC high over the course of a weekend and the green seems to have completely disappeared. Now the pool has been cloudy for about 3 days with very little improvement in clarity. The pump runs 24/7 I've been backwashing the filter every day, and getting what appears to be a lot of debris through the sight glass. I've swept the pool many times and there is very little, if anything in deep end on the bottom. Some leaf pieces come up but not a lot.
CYA 30+ (unsure exact, that's what they put)
I put 64 oz of baking soda in to raise TA since the test.
Any advice as far as clearing it up? They have mentioned flocking it, but I'm trying to keep them from putting everything the pool store says in it.