When the Turtle Scum Out is placed in a swimming pool or spa, it immediately begins absorbing any and all oils and clearing up the scumline. The Turtle Scum Out absorbs 50 times its body weight with the ability to soak up suntan lotion and body oils. Designed to enhance filtration and eliminate the scum, this product is far more superior than its competition. Satisfaction guaranteed and proudly designed and manufactured in the USA.