Plumber - some facts from Wikipedia
A plumber is a tradesperson who specializes in installing and maintaining systems used for potable (drinking) water, sewage and drainage in plumbing systems. The term dates from ancient times, and is related to the Latin word for lead, "plumbum".
The word "plumber" dates from the Roman Empire.3 The Latin for lead is plumbum. Roman roofs used lead in conduits and drain pipes4 and some were also covered with lead, lead was also used for piping and for making baths.5 In medieval times anyone who worked with lead was referred to as a plumber as can be seen from an extract of workmen fixing a roof in Westminster Palace and were referred to as plumbers "To Gilbert de Westminster, plumber, working about the roof of the pantry of the little hall, covering it with lead, and about various defects in the roof of the little hall".6 Thus a person with expertise in working with lead was first known as a Plumbarius which was later shortened to plumber.
Conditions for the development of the hydraulic system
Determinant for the development of a specific hydraulic plant is the fact that in the vicinity there are any other such establishments. Therefore, keeping the hydraulic activity should be supported by a review of the market research and identification of needs of people living near the plant owned hydraulic. In addition, you should make a detailed plan for the development of their own hydraulic plant and take care of his finances. The primary way of taking care of these finances is to decide on the execution only such orders, the execution of which will not be a big problem. In addition, the need to employ only the necessary number of employees and carefully account for the Tax Office.
scope of work performed by a plumber
Persons employed as plumbers can sign various contracts of employment. They work full-time in a variety of plants, hydraulic or sign contracts-orders for certain services. Some plumbers also run his own business, under which perform minor plumbing services. Nowadays, self-employed persons often assume hydraulic websites, which include information on the services rendered by them and their price list. They also by posting information about their activities on bulletin boards, and even spread leaflets around the city to encourage use of their services. So they can get regular customers, who will often benefit from their services.