Plumbers' technical note – Overflow relief gullies and reflux valves

This publication is for: 
Plumber

This technical note has been published to clarify that the requirement for an overflow relief gully is not removed by the installation of a reflux valve. It contains information for the Western Australian plumbing industry regarding the requirements and permitted omissions for overflow relief gullies.

Building Commission
Technical standards
Last updated 08 Aug 2017

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