The Blue Devil Scum Buddy helps to keep oil and scum from impairing your filter performance. Simply place your Scum Buddy into your pool's skimmer basket and it gets right to work absorbing scum and oil. Just rinse and squeeze your Scum Buddy to remove absorbed lotions and oils, and then Scum Buddy is ready for use again. Enjoy cleaner and clearer pool water with Scum Buddy. This reusable solution efficiently removes scum and oil from your pool, extending the life of your filter. Enjoy crystal clear, oil free water.