All test levels have been right on and maintained above the minimum level since opening a month ago.
I maintain Fc loss at 1 overnight
Water is clear. But i notice my skimmer sock on clean out is turning green!! No problem noticed in any other area.
Is it an indication a problem is about to start? Would a 1 time dose of shock level be enough to stop any potential problem from starting or would a full slam be recommended? I can't imagine what else would cause the green skimmer sock.