Centrifugal pumps are used to circulate water and move liquids. Filtering water, increasing water pressure, and aerating ponds and fountains are all frequent commercial and industrial applications. Drainage is sped up with self-priming, portable utility pumps. Corrosion-resistant pumps transport chemicals while protecting them from acids and chemicals. Booster pumps can improve filtration in pond systems by increasing pressure in city mains or residential buildings.