I am in a similar boat as Slim Daddy, been on the sidelines picking up all kind of useful info. New pool filled with water from my pond well, before it was completely full it turned into a green swamp. We commenced to shock and in about 2 days nice and clear. Purchased a TF-100 so I could maintain proper balance and all seemed good.
By the way pool was filled the first of June. Went on a little 4 day holiday and came home to a pool bottom and cove covered with spotty green algae.Pool balanced before trip- TC-5.5, CC-0, PH-7.5, TA-140, CH-260, CYA-50, had floating tri-chlor tabs with filter running 6 hrs a day. Attempting my first SLAM, FC-36, pool brushed, anything that I might of overlooked?