Rainfall in WA has been declining since the 1970s, which means we have to work together to reduce water use and reuse water.
A greywater system can help you save water by irrigating your garden with water from the bath, shower, washing machine, and laundry trough. Some systems are also approved to use water from kitchen sink.
Installation of a greywater system in your home requires approval by your local government and there are legislative requirements you need to be aware of.
Guidance on how to safely use greywater diversion devices (GDD) in your home for watering garden via sub-surface irrigation can be found in this factsheet.
Follow the simple steps to installing a domestic greywater system
Refer to the Local Government Directory (External link) for your local contact details.
For large commercial Greywater reuse schemes including multi-dwellings using greywater for in-house uses such as toilet flushing refer to the Guidelines for the Use of Recycled Water in Western Australia (PDF 1.64 MB).
Approval is not required if you are reusing Greywater via manual bucketing. If you are bucketing greywater, refer to the Code or the guidelines detailed in the Using Greywater (PDF 203KB) factsheet.
For further information, contact your local government Environmental Health Officer.
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