Education: Secondary (high) school graduation certificate. Work setting: Various locations. Commercial. Industrial. Institutional. Residential. Construction site. Tasks: Read blueprints, drawings and specifications to determine layout of plumbing system, water supply network and waste and drainage systems. Locate and mark positions for pipe connections, passage holes and fixtures in walls and floors. Cut opening in walls and floors to accommodate pipe and pipe fittings. Join pipes using couplings, clamps, screws, bolts, cement or soldering, brazing and welding equipment. Schedule personnel, tools and equipment. Test pipes for leaks using air and water pressure gauges. Determine piping system requirements and pipe sizing. Supervise other workers. Measure, cut, thread and bend pipes to required shape and size. Supervision: 1 to 2 people. Work conditions and physical capabilities: Physically demanding. Bending, crouching, kneeling. Handling heavy loads. Own tools/equipment: Steel-toed safety boots. Hard hat. Personal suitability: Efficient interpersonal skills. Excellent oral communication. Excellent written communication. Team player. Experience: 1 to less than 7 months. Green job: Involves duties and responsibilities that lead to positive environmental outcomes.