Plumbers install and repair plumbing fixtures and water, waste disposal, drainage and gas systems in residential, commercial and industrial buildings. They read blueprints to determine the layout of the system and measure and mark areas where the pipes will be installed and connected, checking for obstructions such as electrical wiring.
Once a project has begun, they perform a number of tasks, from simple installation of pipes and fittings to complex calculations and planning in specialized environments such as hospitals. The system must be checked for leaks using air and water pressure gauges to ensure that it is working properly.
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