For development scale residential use or public open space irrigation, non-drinking water is usually supplied through dual reticulation - also known as ‘third pipe systems'.
Dual reticulation schemes are likely to be most viable for new developments in regional areas where scheme water supply is scarce and augmentation is costly.
They may also be viable for the irrigation of public open space (as an alternative to scheme water) and for large scale industrial developments.
All land developments, including those with dual reticulation developments, are encouraged to be water efficient. This may include carefully planning public open space, verges and entry spaces to reduce the irrigation of outdoor spaces.
We work with local governments to identify non-drinking water alternatives to scheme water use for the irrigation of public open space for new developments.