Spa BallSpa Ball The SpaBoss Spa Ball absorbes body oild, suntan lotions, cosmetics and a lot of other unfilterable stuff that gets introduced to the hot tub water. The Spa Ball absorbs nearly 20 times it's own weight! The flow through design allows water to pass through the ball while trapping dirt and debris which helps prevent foaming and the unsightly scum line. It will also increase your hot tub filter's life and efficiency. Just place the spa ball in