A basic laundry-to-garden diversion system does not require a permit for a single-outlet installation in Victoria. A greywater treatment system processing water from multiple sources requires council approval. All plumbing connections must be made by a licensed plumber.
Frequently Asked Questions
What is the difference between greywater diversion and greywater treatment?
A diversion system redirects laundry water directly to sub-surface garden irrigation without treatment. A treatment system processes water from showers, baths, and laundry to a higher standard suitable for irrigation or toilet flushing.
How much greywater does a typical Melbourne household produce?
A typical Melbourne household generates 50 to 100 litres of greywater per person per day from showers and laundry alone. Redirecting this to garden irrigation can significantly reduce outdoor water use during dry periods.
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