Boy! The scum seems to have started early this year, so far so good, No Dw or WM I dont even want to spell out those evil words, just lost of oily looking surface with scum with floating algae of some sorts, looks jelly like. Cutrine plus seems to control it but I think I am going to have to apply once a month or sooner, a little seems to go along way or atleast I only use a little per gallon sprayer. not sure how to read the formula correctly
