Dual piping

Dual piping

Dual piping is a system of plumbing installations used to supply both potable and reclaimed water to a home or business. Under this system, two completely separate water piping systems are used to deliver water to the user. This system prevents mixing of the two water supplies, which is undesirable, since reclaimed water is usually not intended for human consumption.

In the United States, reclaimed water is distributed in lavender (light purple) pipes, to alert users that the pipes contain non-potable water. Hong Kong has used a dual piping system for toilet flushing with sea water since the 1950s.

According to the El Dorado Irrigation District in California, the average dual-piped home used approximately 0.17 acre feet (210 m3) of potable water in 2006. The average single family residence with traditional piping using potable water for irrigation as well as for domestic uses used between 0.63 acre feet (780 m3), higher elevation, and 0.78 acre feet (960 m3), lower elevation.

Further reading

  • Tang, S.L., Derek P.T. Yue, Damien C.C. Ku: Engineering and Costs of Dual Water Supply Systems, International Water Supply Association 2007, ISBN 1843391325



Wikimedia Foundation. 2010.

Игры ⚽ Нужно сделать НИР?

Look at other dictionaries:

  • Reclaimed water — Reclaimed water, sometimes called recycled water, is former wastewater (sewage) that has been treated to remove solids and certain impurities, and then allowed to recharge the aquifer rather than being discharged to surface water. This recharging …   Wikipedia

  • List of environmental topics (D) — This is a list of environmental topics. They relate to the effect of human activity on the environment.*Dams and Reservoirs of the Tennessee River (in the US) *Danish Ministry of the Environment *dark sky movement (for reducing light pollution)… …   Wikipedia

  • List of architecture topics — This page aims to list all topics related to architecture. This is so that those interested in the subject can monitor changes to the pages by clicking on Related changes in the sidebar. It is also to see the gaps in Wikipedia s coverage of the… …   Wikipedia

  • Drinking water — Tap water Drinking water or potable water is water pure enough to be consumed or used with low risk of immediate or long term harm. In most developed countries, the water supplied to households, commerce and industry is all of drinking water… …   Wikipedia

  • Railway air brake — Piping diagram from 1920 of a Westinghouse E T Air Brake system on a locomotive …   Wikipedia

  • building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… …   Universalium

  • End face mechanical seal — An end face mechanical seal, also referred to as a mechanical face seal but usually simply as a mechanical seal, is a type of seal utilised in rotating equipment, such as pumps and compressors. When a pump operates, the liquid could leak out of… …   Wikipedia

  • Range Rover — Infobox Automobile name = Land Rover Range Rover manufacturer = Land Rover parent company = British Leyland 1970 1986 Rover Group 1986 1988 British Aerospace 1988 1994 BMW 1994 2000 Ford 2000 2008 Tata Motors 2008 production = 1970 present… …   Wikipedia

  • environmental works — ▪ civil engineering Introduction       infrastructure that provides cities and towns with water supply, waste disposal, and pollution control services. They include extensive networks of reservoirs, pipelines, treatment systems, pumping stations …   Universalium

  • Double-walled pipe — A double walled pipe is a secondary contained piping system. It is a pipe within a pipe, or encased in an outer covering, with an annulus (interstitial space) between the two diameters. The inner pipe is the primary or carrier pipe and the outer… …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”