Must be able to do the following activities for most of the workday: stand, walk, use hands or fingers, handle or feel, reach with hands and arms, stoop, kneel, crouch or crawl, see, talk, and hear. Studiously learn the necessary aspects of drain, waste, vent (DWV), water systems, and other aspects including but not limited to setting of tubs and installation of plumbing fittings and fixtures.