Scumbug™ is insatiable! When placed in a clean spa, it eliminates the formation of scumlines. Capable of absorbing up to 40 times its weight in body oils and lotions, Scumbug™ provides 300% more surface area than the ball and will not get clogged in water lines. When saturated, simply squeeze out, clean with warm water and reuse. Replace Scumbug™ every six months. A great product!