I got some green algae in my pool after being gone for a few days. I started the SLAM process two days, ago, keeping my FC level above 16 based on CYA of 40 and running the pump 24/7. Last night I did an OCLT and there was no loss of chlorine during the night - CC was 0.5 or less. I can see green algae on the bottom, so I know it is in there. I thought the FC level would for sure be lower because it would be used up eating the algae. So why would the FC level stay constant overnight? Could it be that the algae is already dead? I thought it would turn more of a gray color if it was dead.
And a somewhat unrelated question: Once the algae is dead I would like to get it cleaned out ASAP. I have researched a bit online and found that the fastest way is to add a flocculant to settle it all to the bottom, then vacuum it up. What do you all think of that method?