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.
Plumbing activities
Years of training and/or experience are needed to become a skilled plumber; some jurisdictions also require that plumbers be licensed. Common plumbing tasks and skills:
Reading drawings, and specifications to determine layout of water supply, waste, and venting systems
Detecting faults in plumbing appliances and systems, and correctly diagnosing their causes
Installing, repairing and maintaining domestic, commercial, and industrial plumbing fixtures and systems
Locating and marking positions for pipe connections, passage holes, and fixtures in walls and floors
Measuring, cutting, bending, and threading pipes using hand and power tools or machines
Each state and locality may have its own licensing and taxing schemes for plumbers. Some states license journeyman and master plumbers separately, while others license only master plumbers. To become licensed, plumbers must meet standards for training and experience, and in most cases, pass a certification exam. There is no federal law establishing licenses for plumbers.
Canada
In Canada, licensing requirements differ by province, however the provinces have pooled resources to develop an Interprovincial Program Guide that developed and maintains apprenticeship training standards across all provinces. The Red Seal Program, formally known as the Interprovincial StandardsRed Seal Program, is a program that sets common standards to assess the skills of tradespeople across Canada. The Red Seal, when affixed to a provincial or territorial trade certificate, indicates that a tradesperson has demonstrated the knowledge required for the national standard in that trade.
In Ireland, a 4-year apprenticeship plus qualification exam was necessary for someone to practice professionally. Accreditation of businesses is of great help in order to show their credibility and experience in the job.
Dangers
There are many types of dangers to a plumber. Some of them are strains and sprains, cuts and lacerations, bruises and contusions, fractures, burns and scalds, foreign bodies in the eye, and hernias. Working at height, confined spaces, lead and asbestos are all on site dangers that plumbers can face.
The term "White House Plumbers" was a popular name given to the covert White House Special Investigations Unit established on July 24, 1971 during the presidency of Richard Nixon. Their job was to plug intelligence "leaks" in the U.S. Government relating to the Vietnam War ; hence the term "plumbers".
