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Direct helpers engaged in pipe cutting, preassembly, or installation of plumbing systems or components.
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Modify, clean, or maintain pipe systems, units, fittings, or related machines or equipment, using hand or power tools.
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Locate and mark the position of pipe installations, connections, passage holes, or fixtures in structures, using measuring instruments such as rulers or levels.
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Cut, thread, or hammer pipes to specifications, using tools such as saws, cutting torches, pipe threaders, or pipe benders.
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Lay out full scale drawings of pipe systems, supports, or related equipment, according to blueprints.
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Install underground storm, sanitary, or water piping systems, extending piping as needed to connect fixtures and plumbing.
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Install pipe systems to support alternative energy-fueled systems, such as geothermal heating or cooling systems.
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Install automatic controls to regulate pipe systems.
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Shut off steam, water, or other gases or liquids from pipe sections, using valve keys or wrenches.
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Inspect work sites for obstructions or holes that could cause structural weakness.
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Install green plumbing equipment, such as faucet flow restrictors, dual-flush or pressure-assisted flush toilets, or tankless hot water heaters.
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Install pipe assemblies, fittings, valves, appliances such as dishwashers or water heaters, or fixtures such as sinks or toilets, using hand or power tools.
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Maintain or repair plumbing by replacing defective washers, replacing or mending broken pipes, or opening clogged drains.
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Review blueprints, building codes, or specifications to determine work details or procedures.
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Plan pipe system layout, installation, or repair, according to specifications.
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Fill pipes or plumbing fixtures with water or air and observe pressure gauges to detect and locate leaks.
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Keep records of work assignments.
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Operate motorized pumps to remove water from flooded manholes, basements, or facility floors.
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Weld small pipes or special piping, using specialized techniques, equipment, or materials, such as computer-assisted welding or microchip fabrication.
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Cut openings in structures to accommodate pipes or pipe fittings, using hand or power tools.
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Attach pipes to walls, structures, or fixtures, such as radiators or tanks, using brackets, clamps, tools, or welding equipment.
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Inspect, examine, or test installed systems or pipe lines, using pressure gauge, hydrostatic testing, observation, or other methods.
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Assemble pipe sections, tubing, or fittings, using couplings, clamps, screws, bolts, cement, plastic solvent, caulking, or soldering, brazing, or welding equipment.
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Inspect structures to assess material or equipment needs, to establish the sequence of pipe installations, or to plan installation around obstructions, such as electrical wiring.
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Select pipe sizes, types, or related materials, such as supports, hangers, or hydraulic cylinders, according to specifications.
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Anchor steel supports from ceiling joists to hold pipes in place.
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Repair hydraulic or air pumps.
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Repair or remove and replace system components.
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Install fixtures, appliances, or equipment designed to reduce water or energy consumption.
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Estimate time, material, or labor costs for use in project plans.