i have just opened my AG pool about 4 days ago and is as clear and clean as can be, i have put in algaecide but it has this orange pinkish stuff thats like 120 grit sandpaper growing on my walls, i try to brush the walls but the brush isn't rough enough to take it off so i have to get in the pool and rub my feet and hands on it to take it off. what i am wandering is this some type of algae that the shocking and algaecide can't get rid of or what. ill try to get some pics uploaded tomorrow. BTW all of my levels are in range.