Check your ORG

An ORG is an Overflow Relief Gully. The ORG looks like a grate at ground level is found outside your home, within your boundary.

It is a critical part of your property’s plumbing because it is designed to prevent your house flooding with sewage.

In the event of a sewer blockage, the cover of the ORG should either pop off or pop upwards to release excess pressure and direct sewage away from your home.

If there is heavy rain and sewage is starting to overflow inside your house, then please check your Overflow Relief Gully to make sure that the grate is loose and not blocked.

To find out how to keep your ORG healthy see our handy checklist below.

Watch the video to find out more:



  • hire a licensed plumber to carry out any works to your home.
  • check with you local council that all plumbing is compliant.
  • before planting any trees or shrubs, be sure to think before you plant.
  • be sure to follow these simple steps before you start any building or landscaping.


  • build over your ORG
  • plant trees and shrubs over or close to your ORG
  • connect stormwater pipes and direct water into you ORG


Watch the video to find out more:

If we find an illegal or inappropriate stormwater-to-sewer connection on your property’s drainage system, you will be issued with a notice to call a licensed plumber/drainer to correct the defect within 28 days.