Greywater is recycled water from domestic use in the home. It includes water from baths, showers, hand basins and washing machines (preferably the final rinse water).

Greywater from the kitchen (including dishwashers) should not be used because the concentration of food wastes and chemicals are not readily broken down by soil organisms.

Using greywater can keep your garden thriving during periods of low rainfall, but you need to know how this affects your home, garden and environment.

If you don’t get it right, it’s possible to damage your soil, plants or even put your family and pets at risk. This is because greywater has chemicals and bacteria in it, which in the wrong place can cause problems.

Diverting greywater

You do not need permission to divert greywater from the shower and washing machine for immediate use on the garden. But if you are interested in a permanent greywater treatment and reuse system, you need an EPA-approved system and a permit from your local council. Visit the EPA website or contact your local council for more information.

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