Plumber (Open Rank)
Performs skilled plumbing work involving the installation, maintenance, troubleshooting, and repair of piping systems, valves, faucets, sinks, sewers, vents, sanitary fixtures, and gas and air piping. Inspects, repairs, and replaces steam boilers, safety devices, controls, hot water heaters, and associated equipment. Cleans and maintains boilers, storage tanks, and return systems to ensure safe and efficient operation.