Completes projects with quality workmanship using hand or power tools to install, modify, or repair high-pressure steam, water, and gas lines, valves, traps, drains, plumbing fixtures, and related equipment, by cutting and joining pipes (both threaded and fusion welded), using specialized tools and chemicals, and recommending additional departmental staff or contractors as needed to meet deadlines. The Maintenance Plumber II performs skilled work installing, repairing, and maintaining plumbing systems, including domestic water, heating water, sanitary and storm sewers, gas lines (both threaded and fusion welded), steam and condensate pipes, and fire protection systems.