Most people are familiar with plumbingthat come to their home to unclog a drain or fix a leaking toilet. Plumbing, pipe layers, pipefittings, and steamfitters install, maintain and repair many different types of pipe system. Pipe system in powerplants carries the steam that power huge turbines. Pipes also are used in manufacturing plants to move material through the production process. Specialized piping system is very important in both pharmaceutical and computer chip manufacturing.Pipe fitters in plumbing install and repair both high pressure and low pressure pipe system used in manufacturing, in the generation of electricity and in the heating and cooling of building. They also install automatic controls that are increasingly being used to regulate these systems. Steamfitters install pipe systems that more liquids or gases under high pressure. Sprinkler fitter install fire sprinkler system in buildings. Plumbing pipe layer, pipefitter and steamfitters use many different material and construction techniques depending on the type of project. Residential water systems .Sometimes, plumbing have to cut holes in walls, ceiling and floors of a house. With some systems, they may hang steel support from ceiling joists to hold the pipe in place. To assemble a system, plumbers using saws, pipe cutter and pipe bending machines cut and bend length of the pipe. They connect the sections and fittings, using method that depends on the type of pipe used. For plastic pipe, plumbers connect the section s and fittings with adhesives.Plumbers work in commercial and residential settings where water and septic system need to be installed and maintained. Pipefitters and steamfitters most often work in industrial and power plants. Pipe layers work outdoors, sometimes in remote areas, lying pipe that connect sources of oil, gas and chemicals with the users of these resources. Sprinkler fitter work in all buildings that require the use of fire sprinklersystem.Plumbers, pipe layers, pipefitters and steamfitters enter into the occupation in a variety of ways. Most plumbers, pipefitters and steamfitter get their training in jointly administered apprenticeships or in technical schools and community colleges. Pipe layers typically receive their training on the job.Apprenticeships both union and nonunionconsist of 4 or 5 years of paid on the job training and at least 144 hours of related classroom instruction per year. Classroom subject include drafting and blueprint reading, mathematics, applied physics and chemistry, safety and local plumbing codes and regulations. On the job apprentices first learn basic skills, such as identifying grades and type of pipe, using the tolls of the trade and unloading materials safety. As apprentices gain experience, they learn how to work various types of pipe and how to install different piping system and plumbing fixtures. Apprenticeship, some still learn their skills informally on the job or by taking classes on their own.Sometimes plumbers have to cut holes in walls, ceiling and floors of a house. With some systems, they may hang steel support from ceiling joists to hold the pipe in place. The piping is in place in the house, plumbers install the fixtures and appliances and connect the system to the outside water or sewer lines.