LOL, that’s exactly what I did!I want to get in to make a whirlpool and get all that stuff that's on the bottom into the middle and vacuum it out through the waste.
Since 24 is your SLAM level with your CYA at 60, that’s the FC you shoot for during your SLAM. Just keep testing and raising chlorine to 24, keeping pump going and brushing and vacuuming. This will eliminate your algae, promise! Don’t forget hidden algae traps like stairs, ladders, etc.If that stuff on the bottom is algae will it begin to change colors as it dies?
And should I maintain a level higher then 24-FC during the slam to eradicate this algae problem I've had for almost 6 months