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Residential Greywater Diversion System

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All greywater from showers, bath, basins and laundries is collected in a small DoH WA approved polyethylene tank outside the house. The tank contains an orange high quality stainless steel and cast iron pump which is float activated. When the float rises the greywater is pumped to a 25mm header pipe and then into a subsurface dripper system which feeds the roots of the plants.

Sub surface dripper system coverage can be increased by installing additional dripper lines, valves and solenoids.

Two separate filters and a ball valve keep the system clear of debris such as lint and hair. The system has an Australian Standard main electrical control box with an audible alarm.

A 100mm reflux valve must be fitted to the overflow pipe connecting to the main sewer. This valve is not supplied with the Greywater Diversion Unit.


The Aquarius Greywater System must be installed by a licensed plumber.

The owner must check with Local or State Authority for approval to install.

Western Australia: An application for approval to install each Aquarius DGU shall be in the form of an application to install an apparatus as required under the Health (Treatment of Sewage and Disposal of Effluent and Liquid Waste) Regulations 1974.

Each application for installation shall be made to the Local Government and include full plans and specifications, a completed Application to Construct or Install an Apparatus for the Treatment of Sewage form, and payment of all fees as prescribed.

The DGU ticks all the right boxes:

  • Recycle greywater for irrigation
  • Easy to install
  • Fully approved by DoH WA
  • Australian Standards Watermark
  • Pump included
  • Dripped irrigation included
  • 24 hour timer optional
  • Superior dual filtering system
  • Low operating cost
  • Extended warranty
  • Standard domestic power supply
  • Automatic diversion to sewer in case of power failure
  • Turn off in periods of heavy rain
  • Nothing else to purchase