Suction-side vacuums are devices used in swimming pools to clean debris from the water's surface and floor. They operate by creating a vacuum that pulls water and dirt into a filter bag or canister. These vacuums connect to the pool's existing filtration system, using the suction created by the pump to draw in dirt and leaves. These vacuums are typically easy to use and require minimal setup. They are effective for cleaning various pool surfaces, including tile, vinyl, and fiberglass. Regular use of suction-side vacuums helps maintain a clean and healthy swimming environment, reducing the need for manual cleaning.