Analyze and understand the specifications of the construction blueprints, plans, or drawings to determine the layout of plumbing systems, water supply networks, and waste and drainage systems.

Measure pipes and mark cutting or bending lines, using tools such as plumb bobs, rulers, squares, and pipe or tube cutters.

Select and use appropriate tools to accurately cut and thread pipes. Assemble and secure pipes, tubes, fittings, and related equipment, according to specifications, by welding, brazing, cementing, soldering, or threading joints.

Inspect the workplace and work products to ensure conformance to specifications.

Maintain and repair all types of pipes, using hand and power tools.

Test piping systems for leaks by increasing pressure in pipes and observing gauges.

Comply with all safety standards and regulations. Ensure that all installations, repairs, and maintenance are properly fitted, aligned, and supported to prevent system breakdowns and failures.

Keep all equipment in good condition by regularly inspecting and performing routine maintenance as necessary.

Work closely with other tradespeople, such as electricians, construction workers, or HVAC technicians, ensuring that piping installations don't interfere with other systems and are compatible with equipment placements.

Understand and work from detailed schematics, blueprints, and drawings to determine job specifications and requirements.

 Cut, shape, and mold steel or other metals to form parts of the ship using a variety of tools and machines.

Position, align, and fit parts of structural metal products.

Use welding techniques and appropriate welding equipment, rivets, bolts, or other fasteners to assemble parts.

Measure angles, lengths, and distances, using square, measuring tapes, and rulers to lay out work.

Conduct tests to ensure the quality of the fit and that there are no leaks or issues.

Conduct repair work and general maintenance tasks on existing ships or boats.

Follow all safety protocols and procedures to ensure a safe working environment.

Maintain tools and equipment, ensuring they are stored correctly and are in good working condition.

Work closely with other tradespeople such as welders, marine electricians, and marine engineers.

Analyze construction blueprints, plans, or drawings to determine the welding specifications for both piping systems and structural components.

Clean, prepare, and inspect surfaces to be welded to ensure optimal conditions and meet welding standards.

Utilize a variety of welding techniques (such as SMAW, GMAW, GTAW, or FCAW) to join metals in both pipe and structural forms.

Ensure accurate measurements for seamless welding and proper alignment of structural components.

After welding, test piping systems for leaks or imperfections, and inspect structural welds to ensure integrity and compliance with specifications.

Maintain and repair existing piping and structural systems as needed.

Always adhere to safety standards when welding, including wearing appropriate protective gear (e.g., masks, gloves, safety glasses) and ensuring the workspace is safe.

Regularly inspect, clean, and maintain welding tools and equipment.

Collaborate with other professionals such as pipefitters, fabricators, construction workers, or engineers on projects.