Welcome to our forum.
Have you kept the kids from dunking their heads/hair into the water?
We have threatened to confiscate her swim suit, wash it ourselves, and keep it here when she wants to get in the hot tub.
CHAS, buddy, PLEASE tell me how to do this! Threaten to take away PS2? Kid collar with overhead rope? 20 ppm Chlorine? 9.0 pH?Drewski