Requirements for Pressure Sewer Systems

Requirements for Pressure Sewer Systems

Customers who do not have access to a standard gravity-fed connection to our sewerage network may have the option to install a pressurised sewer system in order to connect.

Use of a pressurised sewer system is subject to approval.

The developer (or their consultant) must provide sufficient information to enable a proper assessment to be undertaken.

If your property is in a low pressure sewer scheme area with a boundary kit between the property and our sewer main in the street, there are two possible connection scenarios:

Boundary kits installed before 1 January 2018

Property owner responsibilities

The owner is required to pay:

  • the cost for the pressurised sewer system on the property, before connecting the private drain. (A cost estimate for the pressurised sewer system is provided once an application to connect has been made)
  • for a licensed plumber to install the private drain from the house to the tank
  • for electricity to operate the pump.

Our responsibilities

  • We own, install and maintain all infrastructure from, and including, the underground retention tank up to, and including, the sewer main.

Boundary kits installed after 1 January 2018

Property owner responsibilities

The owner is responsible for:

  • the cost and installation of all infrastructure from the boundary kit to the house (as shown on the previous page) in accordance with our specifications
  • the costs associated with any extension of the sewer network and/or new boundary kits. For any new boundary kit, the owner is required to pay the estimated sewerage connection fee before connecting the private drain
  • ongoing maintenance of all infrastructure from the house to the boundary kit
  • the cost of electricity to operate the pump.

Our responsibilities

  • We own, install and maintain all infrastructure from, and including, the boundary kit to the sewer main.

If a pressurised sewer system is approved, the WSAA Pressure Sewerage Code of Australia (WSA 07-2007) is used as the basis for design and construction of a system. We have some additional requirements which are detailed in the SA Water Supplement to WSA 07-2007.

The WSAA drawings cover the more detailed requirements and provide ‘deemed to comply’ solutions.

Water Services Association of Australia (WSAA)

  • Pressure Sewerage Code of Australia - WSA 07-2007

Supplementary Documentation

Pressure Sewer Drawings

  • Refer WSA 07-2007 for referenced construction drawings

Engineering Standards

Authorised Products

Links to these authorised products can be found on our Technical Standards page.

  • TS 0507 - Authorised Products for Pressure Sewer Systems

More information

See our pressurised sewer system fact sheet

To find out if your property is in a low pressure sewer scheme area and to determine your connection responsibilities, or to discuss alternative sewer connection options, please call us on 1300 SA WATER (1300 729 283).

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  • Last Updated: 26/06/2019 10:06 AM - We are on site in Toorak Gardens and the nearby water supply may be unavailable until 26/06/2019 07:25 PM. Sometimes our crews need to temporarily interrupt the water supply to our customers and/or manage traffic while they are working. We always aim to minimise inconvenience by restoring supply as safely and quickly as we can. Reference Number WO: 07000165.
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  • Wilmington
  • 26/06/2019
  • Temporary Supply Interruption
  • Estimated start time and water supply off: 28/06/2019 09:30 AM
    Estimated restore time and water supply back on: 28/06/2019 11:00 AM

    We’re improving your services and undertaking maintenance work in Wilmington. Sometimes our crews need to temporarily interrupt the water supply to our customers and/or manage traffic while they are working. Temporary traffic management may remain in place until reinstatement of the impacted road is complete. We always aim to minimise inconvenience by restoring services as safely and quickly as we can.


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