It takes at least 6 months to learn the basic knowledge of water and electricity for home decoration 1 year. Home improvement plumbers learn more comprehensive practical skills of hydropower. Learn relevant hydropower knowledge, master enough theoretical experience and then find a master to learn, so that the foundation is more solid and the hand is faster. Home improvement plumbers need to have certain knowledge of electrician and plumbing. Beginners need to learn hydropower knowledge, master hydropower safety knowledge and hydropower construction skills by receiving relevant training and courses. Decoration plumber is a professional type of decoration work, and its scope of work includes the installation, maintenance and replacement of hydropower equipment, as well as the installation, maintenance and replacement of hydropower pipelines. The scope of work also includes the installation, maintenance and replacement of electrical equipment, as well as the installation, maintenance and replacement of electric wires. Decoration plumbers are also responsible for installing, maintaining and replacing lighting equipment, as well as installing, maintaining and replacing lighting lines. In addition, it is also responsible for the installation, maintenance and replacement of air-conditioning equipment, as well as the installation, maintenance and replacement of air-conditioning pipes.