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City West Water

Sanctuary lakes sewer system upgrade

We are upgrading the Sanctuary Lakes sewer system.

Sanctuary Lakes has a system that uses a vacuum to transfer the sewage, working on the same principles as a vacuum cleaner.

The vacuum sewerage system was installed to accommodate the flat terrain and rocky ground found at Sanctuary Lakes. The system uses a collection pit, vacuum valve and pump to suck sewage from your property before it’s discharged to our main sewerage system.


The project has begun with the rising main upsize, and be completed by the end of 2018.


The project will improve sewer performance, reduce spills and reduce the need for trucks to remove sewage.

What not to flush

Vacuum sewer systems, and particularly the valves in the pits, can be easily blocked and damaged by solid objects which can lead to sewage spills. It is very important that residents are careful with what they dispose of down the toilet or drain to avoid blockages.

The only things that should go in your toilet are the three ‘Ps’ – pee, poo and paper (toilet paper).

As a guide please do not flush any of the following down the toilet:

  • Feminine hygiene products.
  • Nappies.
  • Wet wipes.
  • Toilet deodorisers.
  • Cotton buds.
  • Ice cream sticks.
  • Plastic.
  • Or any other solid objects.

Need more information?

For more information about the project, please email

What’s involved

This $5 million project will upgrade the current sewer system, which is 18 years old.

The project will include installing monitoring equipment to make it easier to identify issues in the system 24/7, upsize and realign a rising main to increase the capacity to discharge sewage, upsize critical pipelines and upgrade the pump station to improve its performance.

The project will reduce the likelihood of issues including sewer blockages and improve the sewer system’s performance.

Please tell us what you think.