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Skip Navigation LinksDepartment of Housing and Public Works > Construction > Building and plumbing > Plumbing and drainage > Greywater > Greywater treatment plants

Greywater treatment plants

Greywater from bathroom and laundry basins, showers and washing machines can be used above ground.

To use greywater on your lawn and garden you can:

  • manually bucket greywater onto lawns and gardens with no council approval required
  • attach a flexible hose to your washing machine outlet which does not require council approval
  • install an approved greywater diversion or treatment system to disperse the greywater above or below ground with local council approval and installation by a licensed plumber.

A greywater treatment system must hold a chief executive approval or its predecessor before it can be installed.

Approved facilities

Company name

Approved facilities

​Approval documents

Expiry date


M800 Greywater System

Chief executive approval 03/2017 (PDF, 951KB) 

27 Mar 2022

Aquacell Pty Ltd

Aquacell G20—Greywater Treatment Plan

Chief executive approval 20/2015 (PDF, 324KB) 

6 May 2020

Ecoflo Wastewater Management Pty Ltd

Nature Clear GWS10 Greywater Treatment System (primary greywater treatment system approval only)

Chief executive approval 04/2017 (PDF, 1MB)

21 May 2017

​Eco Design Sustainable Housing

​Eco Design Greywater Recycling System

​Chief executive approval 08/2016 (PDF, 257KB)

​16 June 2021

Envirotech treatment Systems Pty Ltd

Envirotech GTU Greywater Treatment System

Chief executive approval 08/2013 (PDF, 178KB)


Approved drawing (PDF, 56KB)

28 July 2018

Everhard Industries Pty Ltd

Micro-nova EP 10 Greywater Treatment System

Chief executive approval 07/2013 (PDF, 66KB)


Approved drawing (PDF, 50KB)

3 June 2018

Greywater Solutions trust

BioCell ADGF01

Chief executive approval 10/2016 (PDF, 217KB)

21October 2021

Hydrasyst Pty Ltd

Hydrasyst—The Grey Box

Chief executive approval 04/2014 (PDF, 131KB)

19 May 2019

H2O World Wide Water Solutions Pty Ltd

H2O Pure Plus Whole of House Advanced Secondary Quality Greywater Treatment System with Nutrient Reduction

Chief executive approval 02/2014 (PDF, 1.2MB)

11 March 2018

Suncoast Waste Water Management

Ozzi Kl​een—GTS10 ​ ​

Chief executive approval 04/2016 (PDF, 2.47MB) ​

15 Apr 2021​

More information

See on-site sewerage or contact Building Industry and Policy​ for more information.


Last updated 28 March 2018    Creative Commons Attribution 4.0 International (CC BY 4.0)

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