Plumbing

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for working on pipes and fittings piping, stop valves regulate flow to various parts of the building. piping system in a building with intumescent firestop being installed by an insulator, Vancouver, British Columbia, Canada.Plumbing, from the Latin for lead, is the skilled trade of working with pipe (material), Tubing (material) and plumbing fixtures for potable water systems and the drainage of waste. Plumbing originated during the ancient civilizations such as the Roman, Persian, Indian, and Chinese civilizations as they developed public baths and needed to provide drinking water, and drainage of wastes. A plumber is someone who installs or repairs piping systems, plumbing fixtures and equipment such as water heaters. The plumbing industry is a basic and substantial part of every developed economy due to the need for clean water, and proper collection and transport of wastes.Plumbing: the Arteries of Civilization, Modern Marvels video series, The History Channel, AAE-42223, A&E Television, 1996

Plumbing also refers to a system of pipes and fixtures installed in a building for the distribution of potable water and the removal of waterborne wastes. Plumbing is usually distinguished from water and sewage, in that a plumbing system serves one building, while water and sewage systems serve a group of buildings or a city.

Much of the plumbing work in populated areas (cities, towns, etc...) is regulated by government or quasi-government agencies due to the direct impact on the public's health, safety, and welfare. Plumbing installation and repair work on residences and other buildings generally must be done according to plumbing and building codes to protect the inhabitants of the buildings and to ensure safe, quality construction to future buyers. If permits are required for work, plumbing contractors typically secure them from the authorities on behalf of home or building owners. Unusually, in the United Kingdom the plumbing trade still remains virtually ungoverned; there are no systems in place to monitor or control the activities of unqualified plumbers or those home owners who choose to undertake installation and maintenance works themselves, despite the health and safety issues which arise from such works when they are undertaken incorrectly. Furthermore, despite having in place an infrastructure dedicated to formally training plumbers and various Statutes, Regulations and Bye-laws designed to dictate and control how and in what manner plumbing works are undertaken, there is nothing to stop anyone without any training whatsoever working as a plumber, safe in the knowledge that it is unlikely that their lack of technical know-how will ever be found-out. Such people are referred to as Cowboys.

MaterialsWater systems of ancient times relied on gravity for the supply of water, using pipes or channels usually made of clay, lead or stone. Present-day water-supply systems use a network of high-pressure pumps, and pipes are now made of copperCopper Tube Handbook, the Copper Development Association, New York, USA, 2006, brass, plastic, steel, or other nontoxic material. Present-day drain and vent lines are made of plastic, steel, cast-iron, and lead. Lead is not used in modern water-supply piping due to its toxicity.Uniform Plumbing Code, IAPMOInternational Plumbing Code, ICC

The 'straight' sections of plumbing systems are of pipe or tube. A pipe is typically formed via casting or welding, where a tube is made through extrusion. Pipe normally has thicker walls and may be threaded or welded, where tubing is thinner-walled and requires special joining techniques such as 'soldering', 'compression fitting', 'crimping', or for plastics, 'solvent welding'.

Fittings and valves In addition to the straight pipe or tubing, many fittings are required in plumbing systems, such as valves, elbows, tees, and unions. The piping and plumbing fittings and valves articles discuss them further.

Fixtures Plumbing fixtures are the devices installed for the end-users. Some examples of fixtures include water closets (toilets), urinals, bidets, showers, bathtubs, lavatories, utility and kitchen sinks, drinking fountains, ice makers, humidifiers, air washers, fountains, eyewashes, floor drains, garbage disposers, and hosebibbs.

Equipment Plumbing equipment, not present in all systems, include, for example, water meters, pumps, expansion tanks, backflow preventers, filters, water softeners, water heaters, heat exchangers, gauges, and control systems.

Systems The major categories of plumbing systems or subsystems are:

Domestic water system
Plumbing drainage venting
Septic systems
Drainage
Piping

For their environmental benefit and sizable energy savings hot water heat recycling units are growing in use throughout the residential building sectors. Further ecological concern has seen increasing interest in Greywater recovery and treatment systems.

Firestopping installation in mechanical service penetration in Fire-resistance rating concrete floor.Firestopping is required where mechanical penetrants traverse Fire-resistance rating wall and floor assemblies, or membranes thereof. This work is usually done worldwide by the insulation trade and/or specialty firestop sub-contractors.

History Improvement in plumbing systems was very slow, with virtually no progress made from the time of the Roman system of aqueducts and lead pipes until the 19th century. Eventually the development of separate, underground water and sewage systems eliminated open sewage ditches and cesspit.

See also

References

External Resources Plumbing Training in Canada

Plumbing Forum - Pure Trade Talk

Plumbing Supplies available at Plumbworld
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City Plumbing Supplies
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Plumbing courses - UK plumbing training courses - plumbing course ...
Plumbing Career Skills. Plumbing courses across the UK. Gain plumbing qualifications and have a lucrative career in plumbing in less than six months.

PTS - Plumbing Trade Supplies
PTS is part of the BSS Group plc and the second largest plumbing and heating merchants in the UK with its branches nationwide.

Plumbing Training Courses - Intensive Plumbing Courses - Fast Track ...
Throughout our website you will find plumbing courses and details of plumbing training in the UK. The details will also be on our nvq and city and guilds qualifications, we also ...

plumbing from FOLDOC
plumbing (Unix) Term used for shell code, so called because of the prevalence of "pipelines" that feed the output of one program to the input of another.

H2 Plumbing Ltd
Domestic plumbing, heating and electrical engineers. Includes services and testimonials.

Home - Marley Plumbing & Drainage
manufacturers and suppliers of above and below ground drainage, hot and cold water supply and ventilation product ranges. ... Welcome to Marley Plumbing & Drainage. The Marley ...