Plumber trade involves installation, maintenance, and repair of water supply systems, drainage systems, and sanitary fittings in residential, commercial, and industrial buildings. Plumbers work with pipes, valves, fixtures, and fittings to ensure proper water flow and waste disposal. They use tools such as pipe wrenches, cutters, and threading tools. This trade requires knowledge of plumbing systems, pipe materials, and safety practices. Plumbers play a vital role in construction and maintenance of infrastructure. Career opportunities include working in construction sites, maintenance services, and plumbing businesses.