Put in a pint of Polyquat to bring the FC down a bit (now down to 16), help clarify the water too, and we're going swimming today!

Weird thing: 3 days ago, I tested the CYA and it read 40ppm. Today I tested it, having added NOTHING but bleach/LC and CYA tested at 60ppm! No CYA, Tri-chlor or Di-chlor has been added in well over a month. Wondering how this could happen, because I've never seen CYA go UP without it being added in the last 7-14 days, not over a month.