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Tel: 0418 315 041

It's been a long time since you've been able to use water with a clear conscience.  GRH Plumbing are proud to be Agent's for the OASIS GT600 Greywater treatment system. Now you can when you can recycle up to 60% of your household water with an OASIS.


  • No unpleasant odours
  • Self Cleaning
  • Low maintenance
  • Low power consumption - around 40% less than aerated systems
  • No harmful chemicals
  • No pump outs
  • No excavation
  • Continuous process


Nubian Water Systems introduces the latest technology in greywater recycling with its new age slimline treatment unit. The system can be installed beside your house, requiring no excavation or disruption to your garden. It is as easy to install as a hot water system or other household appliance.

The system is housed in the lightweight, slimline units;

  • Processor - treatment system;
  • Feed Tank - holds household greywater prior to processing;
  • Treated Water Tank - recycled water for application as listed below.

The system can treat all household greywater produced by up to eight (8) people.

Recycling Options
Toilet Flushing
Above Ground Irigation
Non-potable Hose Cocks*
Pavement and Car Washing
Fire Fighting*
* subject to local council approval










Three levels of treatment are used by the system;

  1. Pre-screen removes lint and other coarse materials to prevent blockages and fouling of the system;
  2. Water flows down through a bed of proprietary media in the Processor.Contaminant removal is achieved through filtration, absorption and biological treatment;
  3. Ultraviolet (UV) disinfection completes the treatment process before water is stored for recycling. 


  • Plumbing from your toilet and kitchen must be separated from your greywater plumbing;
  • The tanks can be installed internally or externally;
  • Installation can be completed in less than a day.



For more information, click here

Contact Details

Address: 45 Norman Avenue, Frankston 3199 Telephone: 0418 315 041