Greywater systems

The following information applies to NSW residents. For general information on greywater systems, click here.

• Greywater Diversion Devices (GDD) include a hand activated switch that diverts untreated greywater by gravity or pump directly to a sub-surface irrigation system. Greywater from this device is untreated and must only be used for sub-surface irrigation.
• Greywater Treatment Systems (GTS) collect, store, treat and may disinfect greywater to the standards specified in the NSW Health Domestic Greywater Treatment Systems Accreditation Guidelines (February 2005). They can be installed in residential premises in sewered areas to provide treated greywater for reuse for irrigation (including surface irrigation), toilet flushing and washing machine use.
• Manual Bucketing of Greywater enables residents to reuse small quantities of greywater by collecting water in the shower and laundry. Bucketed greywater can be reused for irrigation of gardens, lawns and outdoor pot plants.

Permits and the legal position for residents in NSW:

• Council approval is required before installing a Greywater Diversion Device (GDD). However, a greywater diversion may be carried out without prior council approval if certain requirements are met. Check with your local council and water authority before proceeding. A licensed plumber must be used to install the GDD.
• Council approval is required before installing and operating a Greywater Treatment System (GTS). A council must not approve the installation of a GTS unless it has been accredited by NSW Health. A licensed plumber must be used to install the GTS and any associated distribution system (eg irrigation system, third pipe for toilet flushing).

For further information, contact:

• Your local council or water authority
• A plumber in NSW

Rebates for residents in NSW

No statewide rebates towards the cost of purchasing a greywater tank system are currently available in NSW. However check with your local council.