Education: Secondary (high) school graduation certificate. Tasks: Clean and maintain pipe units and fittings and flush system. Cut openings for pipe in walls, floors and ceilings using hand or power tools or machines. Install supports, valves, piping and control systems. Measure, cut, thread and bend pipes to required shape and size. Remove and replace worn components and reactivate system. Select type and size of pipe required. Test system for leaks using testing equipment. Weld, braze, cement, solder and thread joints to join pipes and fabricate sections of piping system. Read and interpret blueprints, maps, drawings and specifications. Locate and mark positions for pipe connections, passage holes and fixtures in walls and floors. Screening questions: Do you have experience working in this field?. Experience: 1 year to less than 2 years. Green job: Involves duties and responsibilities that lead to positive environmental outcomes.