Thank you for the replies.. The scum is a slight brown, so I guess it would be the wife's mascara or something..We try to use the same suit (if worn), so we do not get the soap residue in it..
Jim, after initial fillup, I have just done the basic shock, chlorine, PH + or - as needed to try and keep the levels correct.The tub also uses some "frog" that goes in the water.. If I use the heck out of the tub, I will try and throw a capful of chlorine after we are out of the tub. But other than that, I haven't done much to it....Thanks for the advice on 1 month cleaning though.. I will go ahead and drain it out and give it a good cleaning..
Thanks again for the replies, as I can only get better with experience..LOL