Inflow and Infiltration Program

 

What is Inflow and Infiltration?

Inflow and infiltration are terms used to describe how rainwater and groundwater enter the sewerage network, in addition to the regular sewage discharged from bathrooms, sinks and toilets.

Inflow refers to rainwater entering via defective or inappropriate plumbing of stormwater to the sewerage network.

Infiltration refers to groundwater entering underground infrastructure via cracks and faulty joints.

The effects of Inflow and Infiltration

Unitywater is committed to reducing the amount of rainwater and groundwater entering the sewerage network in order to:

  • prevent sewage overflows to creeks,
  • rivers, parks and private property;
  • lower sewage pumping and treatment costs;
  • optimise the capacity of the sewerage network and defer the need for expensive upgrades; and
  • enhance the quality of our waterways.

What Unitywater is doing to help

Unitywater is rolling out an investigation program targeting priority areas where sewage overflows are most often experienced.
We will notify property owners of any defects identified on their property and advise that these be repaired.
Our crews will also work to identify and rectify any leaks and cracks in underground infrastructure.

What you can do to help

Residents and property owners can do their part to ease the burden on our sewerage system by being aware of and fixing any defective or inappropriate connections. A licensed plumber should be used to rectify these faults.

Check out the 'Stop Sewage Overflows' video on our YouTube Channel.

inflow smoke testing

Smoke Testing

    Saving Tips
  • Pool Tip #3

    Save water by regularly checking your pool for leaks. To do this check for damp spots downstream of the pool, and for leaking pipes, valves and joiners.

    ·         Save water by regularly checking your pool for leaks. To do this check for damp spots downstream of the pool, and for leaking pipes, valves and joiners.