Flint & Walling, a manufacturer of pumps and water systems, is celebrating its 150th anniversary this year. The company is Kendallville, Ind.’s oldest manufacturer. Flint & Walling notes it is the only U.S. pump company to manufacture its own 4” submersible, jet pump and centrifugal pump motors. Flint & Walling is a wholly owned subsidiary of Zoeller Co.