Ensure operators safely clean interiors of boilers, storage tanks, industrial processing tanks, kilns, and tank and refrigerator railroad cars to remove emulsion, scale, incrustations, deposits of residue, or catalyst using shovels, squeegees, brooms, scrapers, hoses, water, and solvents. Supervise and assist operators with the safe set-up and break-down of jobs including draining tanks, connecting hoses and prepping area prior to work, and removing tools and debris after work is complete.