The Polaris 360 is one of many that use a dedicated pressure line from the return line to your pool without a booster pump. The cleaner does require that your return pressure is of a certain pressure, so care must be taken when deciding to purchase the product. It works very well and is easy to clean and maintain. It has an in-line back-up valve that automatically frees it if it gets cornered and lets it keep cleaning without interruption. It not only handles gunite and fiberglass pools but will also work with vinyl lined pools.