The AquaLevel Water Leveler automatically fills your in-ground swimming pool when the water level is low. Simply attach a standard garden hose to the AquaLevel automatic pool water leveler; no other installation is required. Once in place, turn the water and it will maintain your desired water depth in your skimmer. When the pool reaches desired water level, the AquaLevel automatically shuts off. Fully portable with a sleek, attractive design, the AquaLevel will look great with any swimming pool.