Fabricates and installs piping. Cuts threads, and hammers pipe to specifications. Measures and marks pipes for cutting and threading. Attaches pipes to walls, structures, and fixtures using brackets, clamps, and other methods. Reads blue prints to determine parts requirements of the job. Plans pipe system layout and installation. Tests piping to ensure against leaks. Performs structural welding in order to attach and secure piping systems to walls, floors, fixtures. Performs other duties as required. Cleans work site when job completed at end of day.