About the word
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.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.
Plumbing - from Wikipedia
Plumbing is any system that conveys fluids for a wide range of applications. Heating and cooling, waste removal, and potable water delivery are among the most common uses for plumbing however plumbing's not limited to these applications.1 Plumbing utilizes pipes, valves, plumbing fixtures, tanks, and other apparatuses to convey fluids.2 Trades that work with plumbing such as boilermakers, plumbers, and pipefitters are referred to the plumbing trade. In the Developed world plumbing infrastructure is critical for public health and sanitation.34
The word derives from the Latin plumbum for lead, as the first effective pipes used in Roman era were lead pipes.
The scope of work of hydraulic
The scope of work includes running small hydraulic repair and counteract the negative effects of large hydraulic failure including, for example, one part of the city. Then in his work co-operate with the fire department, which deals with pumping water from flooded premises or the flooded area of the city. In such a situation, plumbers, first assess the damage done plumbing, and then deal with their valuation and inform the owners of the premises or the city authorities of its findings. Only on this basis can take care of carrying out the necessary repairs. Normally plumbers work from Monday to Friday or Saturday, but in emergency situations may proceed to carry out their work even on Sundays.