If you notice grit after you're already sitting in your hot tub, don't get out of the water to clean it up. The small, 9'-long Grit-Gitter floats in your spa and is always at hand. The Grit-Gitter is great for vacuuming the filter compartment, tight corners, and hard-to-reach areas. There's no need to get out, nothing to hook up, nothing to plug in, and no batteries necessary. Twists apart for easy emptying. It comes with a one-year warranty and easy-to-follow instructions.