The Lead or Master Plumber performs advanced (senior-level) installation, maintenance, and repair work of plumbing systems and components. He or She supervises, leads and coordinates and participates in the maintenance and repair of other maintenance, operation and repair of other FOM systems and fixtures. Primarily, hands on work involves assembling, installing, or repairing pipes, backflow inspections (both domestic and fire/life safety), fittings, or fixtures of heating, water, surge arrester