Difference between revisions of "Plumbing"
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== Pipework == | == Pipework == | ||
=== Lead === | === Lead === | ||
| + | * Lead piping is no longer installed. Much lead pipe remains in use. | ||
| + | * In hard water areas, scale forms inside the pipe and prevents water contacting the lead directly. Amount of leaching is very low in these circumstances, and not generally regarded as problematic. | ||
| + | * In soft water areas, scale does not form and the water continues to have direct access to the lead pipe walls. Lead leaching levels are significantly higher than with lead pipe in hard water areas. | ||
| + | |||
=== Copper === | === Copper === | ||
=== Plastic === | === Plastic === | ||
Revision as of 20:04, 21 December 2006
The art or science of conveying stuff around using pipes. Sometimes metaphorically cf.Internet Plumbing.
The name derives from the Latin plumbum through OFr plomb meaning lead [ref SOED]. Nowadays lead is almost completely absent from pipework, although part of the traditional plumbing craft training is sheet leadwork.
Water
In general 'Plumbing' refers to hot and cold water systems.
Hot Water
Is made from cold water by Domestic Hot Water Systems
cold water
is best for drinking
Gas
Plumbing for Gas is more commonly referred to as 'Gas Fitting' or 'Gas Installation'. It is regulated by law: specifically the Statutory Instrument known as the Gas Safety (Installation and Use) Regulations 1998
Pipework
Lead
- Lead piping is no longer installed. Much lead pipe remains in use.
- In hard water areas, scale forms inside the pipe and prevents water contacting the lead directly. Amount of leaching is very low in these circumstances, and not generally regarded as problematic.
- In soft water areas, scale does not form and the water continues to have direct access to the lead pipe walls. Lead leaching levels are significantly higher than with lead pipe in hard water areas.