The Proud Mary installed an AeroDAF unit to treat its greywater.

True to her name, the vessel was proud it contributed to the Murray River retaining its natural beauty for years to come.

The Need

To comply with South Australian legislation, the Proud Mary vessel on the Murray River had to either treat or contain its greywater.

The Solution

The dissolved air flotation (AeroDAF 13) unit was installed to manage the greywater from the 36 passenger and crew vessel.

The Benefit

The Proud Mary is now compliant with Australia Standard 4995 (“Greywater Treatment Systems for Vessels Operated on Inland Waters”).


The Proud Mary is a beautiful ship evoking the legendary Mississippi river cruises of the original paddle steamers.

The vessel holds 36 patrons and crew and is a sort after luxury trip for anyone wishing to experience the beauty of the Murray River.

The South Australian EPA introduced legislation enforcing houseboats to treat or contain their greywater.

The owners of the Proud Mary contacted Aerofloat for advice, and decided Aerofloat was the company best suited to help them meet their obligations.

The Aerofloat Solution

Aerofloat was responsible for the hydraulic design and installation of the dissolved air flotation unit (AeroDAF 13).

The project required a cooperative approach with the Proud Mary team to locate the best position for the system and auxiliary equipment. Aerofloat also ensured an installation timeframe that meant minimal disturbance to the Proud Mary schedule. The project included:

  • Screening
  • Greywater collection tank
  • pH correction
  • AeroDAF 13


Aerofloat is the only company to have completed the rigorous certification required by the South Australian government, for its AeroDAF. The owners of the Proud Mary were assured of producing a compliant effluent quality.

The system was successfully installed and achieved the required discharge standards.

After Care Service

Aerofloat can help you maintain optimal performance of your wastewater treatment system long after installation.

Servicing – Chemical Supply – Sampling & Analysis – System Automation & Remote Monitoring

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