assembles and installs plumbing systems or components such as but not limited to, valves, pipe fittings, pumps, tanks, backflow preventers, hot water heaters, drains, flow sensors, gauges, bearings and seals, steam traps irrigation systems, pipe hangers, saddles, rods, compressed air pipes, etc. The Plumber-Maintenance maintains, assembles, installs, and repairs pipes, fittings, and fixtures of HVAC systems, water, gas, air and drainage systems, according to specifications and plumbing codes, within the healthcare facilities of the 59th Medical Wing (JBSA-Lackland, Randolph AFB, and outlying facilities).