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Plumbing, from the latin for Lead (Plumbus), is the trade of working with pipes for water, drainage and natural gas.
Types of PipeTypes of pipes for different plumbing usage vary even inside a country by local code and customary usage.
soldered (either by hand or using Yorkshire Fittings). The use of lead in solders has been subject to the same criticisms as lead pipes and so lead-free solders are now in use. Green residues in bathroom fixtures are indicative of acidic corrosion in copper pipes.
Copper pipes usually mate with plastic pipes (e.g. the feed into a power shower) with push fit fittings.
In domestic plumbing, several types of plastic are used. These include rigid PVC for cold water and waste systems, flexible polyethylene for cold water, flexible polybutylene (PB) for hot and cold water. Domestic plastic pipes with hot water feeds of the CPVC type use a special solvent. Rigid ABS and PP plastic are used for most of the waste system including vent stacks, and have largely replaced the much heavier cast iron pipes.
Domestic plastic pipes are generally glued, called solvent welding; however, threaded, push-fit or speed-fit fixings are sometimes used. Compression fittings are common when the plastic must connect with metallic pipes or fixtures.
Glazed TileUsually used to provide drainage to low-lying fields or lawns, it is sometimes used in the portion of the waste systems outside the building. Often called field tile.
See also Domestic water system
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