View the complete list of Plumbers Technical Notes.
Plumbers Technical Note – Overflow relief gullies and reflux valves (v4 May 2023)
Guidance
This technical note has been published to clarify the requirements for overflow relief gullies and that the installation of a reflux valve does not remove these requirements.
Sidebar
More like this
Assistance
Need translating and interpreting help to call Building and Energy? Use the Translating and Interpreting Service on 13 14 50.
National Relay Service helps people who are deaf, hearing and/or speech-impaired. Call the National Relay Service on 13 36 77 and ask to call Building and Energy on 1300 489 099.
Published
5 November 2024
