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.

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In the United States, reclaimed water is distributed in lavender (light purple) pipes, to alert users that the pipes contain non-potable water.

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.

See also

• Watercooling