Some Wikipedia facts
The word "plumber" dates from the Roman Empire. The Latin for lead is plumbum. Roman roofs used lead in conduits and drain pipes and some were also covered with lead, lead was also used for piping and for making baths. 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". Thus a person with expertise in working with lead was first known as a Plumbarius which was later shortened to plumber.
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".
Źródło: https://en.wikipedia.org/wiki/Plumber
Good store hydraulic equipment
Many of the minor plumbing work we perform ourselves, without the need to order and pay for plumbing services. This is the case when taping of water is caused by a broken seal or simply only further insulate the hose from the washing machine to the water drained from this unit does not spread into the sides. Attribute household plumbing are, so all kinds of gaskets and other materials for performing insulation, as well as various screws and screwdrivers and drill. Additional hydraulic equipment you can buy at the store, which additionally get professional help in terms of its choice. Hydraulic devices can also be ordered via the Internet.
Why a professional plumber is well-paid
Professional plumber is still a well-paid profession, because the failures occurring in the water and sewage networks are still very frequent. More often there are failures washing machines or dishwashers, which can prevent only a plumber. At the same time among plumbers, there is a lot of competition, so they are trying at all costs to attract and retain potential customers through various promotions. They can also carry out work tiling and painting if required finish the bathroom, which they do. However, many plumbers, dissatisfied with their wages go abroad in search of better-paid work and perform activities there, they do not want to do local plumbers.