I got an algae bloom about 3+ weeks ago. Shocked with liquid bleach and ran the filter full time, killed all the algae, and it slowly and steadily improved over about 2 weeks, and then just seemed to stall. The shallow end (3-1/2') is fairly clear, deep end (8-1/2') still has a murky green color, can barely see the bottom, and has been that way for nearly two weeks, without getting better or worse, and I can't figure out where to go from here.
I've kept it chlorinated, and am pretty sure algae is dead - FC has stayed in the 3-5 range, adding maybe a half bottle a day on average. I tried shocking again last night, took it to FC ~ 12 last night, still reads 10+ this morning.
Also can't figure out whey I also seem to get a good bit of sediment, which I'm assuming is decomposed leaves? I've scooped all the dead leaves out - which had accumulated over the winter - but have vacuumed the whole pool to waste 2-3 times, and within a couple of days it comes back. I do live next to a wooded lot which is an unfortunate challenge to keep leaves, etc. out, but I have been keeping it fairly clear.
Here are my test results from this morning:
FC - 10
pH - 8.0
TA - 60
CH - 100
CYA - 50
25,000 gallon vinyl in-ground, Birmingham AL
Zeosand filter w/ 1 hp pump