Purple Pipes (called Dual Reticulation in Australia)

Reclaimed water is distributed in purple pipes for use inside the house for toilet flushing or outside for landscape irrigation. This water can also be used inside businesses and offices for toilet flushing or in temperature-control systems, such as boilers and air conditioners.

A separate pipe delivers water for drinking. Although purple-pipe water is not of drinking water quality, it does not pose a threat to health if used as intended for non-drinking purposes.