Used BBB for four years now with great success. A little baffled this year.
Usually I stop adding chlorine when it gets cool about Oct./Nov. If I keep the leaves out of the pool, it stays clear until time to open in spring.
We had no winter in Georgia to speak of. With the warm temps, noticed algae in late Jan. Turned bright green but I didn't worry because I knew what to do. Began opening a little earlier (late March) because of high temps. Got rid of green and had stable chlorine readings in about a week and a half. Pump has run 24/7. Still can't get water clear-has whitish cast and visibility of about 1-1/2 feet.
Added Ecoklean to sand filter twice to try to help. When I backwash, the whitish stuff appears in the sight glass, so I know the filter is catching some of it. By the looks of the pool, I don't seem to be making any progress. Here are the latest readings:
FC - 3
CC - 0
pH - 7.5
TA - 80
CYA - 25
CH - 10
Any help is greatly appreciated!