Regulation and compliance
Before a water supply
system is constructed or
modified, the designer and contractor need to consult the local plumbing
code and obtain a building permits prior to construction. Even replacing
an existing water heater may require a permit and inspection of the work.
National and local fire codes should be integrated in the design phase of
the water system too to prevent "failure comply with regulations" notices.
Some areas of the United States require on-site water reserves of potable
and fire water by law.
Waste water
The waste water from the various appliances, fixtures, and taps is
transferred to the waste and sewage removal system via the sewage drain
system. This system consists of larger diameter piping, water traps, and
is well vented to prevent toxic gases from entering the living space. The
plumbing drains and vents article discusses the topic further, and
introduces sewage treatment.
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Alphabetical Listings
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Centsible Plumbing Heating
726 Ohio St, Dixon, CA 707 678-4174
MJB Plumbing
340 Industrial Way, Dixon, CA 707 678-6019
Mr Rooter
149 Grobric Ct # B, Fairfield, CA 707 422-4220
Plumbing MD
955 Business Park Dr, Dixon, CA 707 678-3659
Roto-Rooter Plumbing & Drain
Dixon, CA 707 678-5113
Wilson Plumbing Co
Dixon, CA 707 693-8844 |
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Plastics
Plastic pipe is in wide use for domestic water supply and drainage, waste,
and vent (DWV) pipe. For example, polyvinyl chloride (PVC), chlorinated
polyvinyl chloride (CPVC), polypropylene (PP), polybutlyene (PB), and
polyethylene (PE) may be allowed by code for certain uses. Some examples
of plastics in water supply systems are:
PVC/CPVC - rigid plastic pipes similar to PVC drain pipes but with thicker
walls to deal with municipal water pressure, introduced around 1970. PVC
should be used for cold water only, or venting, CPVC can be used for hot
and cold potable water supply. Connections are made with primers and
solvent cements as required by code.
PBT - flexible (usually gray or blue) plastic pipe which is attached to
barbed fittings and secured in place with a copper crimp ring. The primary
manufacturer of PBT tubing and fittings was driven into bankruptcy by a
class-action lawsuit over failures of this system. However, PB and PBT
tubing has returned to the market and codes, typically first for 'exposed
locations' such as risers.
PEX - Cross linked polyethylene system with mechanically joined fittings
employing barbs and crimped steel or copper fittings. |
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Also See:
Contractors Index
Index Dixon
Keyword Category
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