A SLAM is not a one time thing...... it is a process that is maintained until you meet all three criteria to end the SLAM.Ok, wow, Joyful you nailed it. We had a ton of algae back in October. Pool guy cleared it up. BUT there was that brown stuff on the bottom of the pool. So I thought it was just dirt! WRONG.... I SLAMed it last night. The brown stuff is gone!! Im really happy! Thank you guys so much. .........
Has your pool met all three criteria?
I would not add CYA until it does.