This technical note has been issued to provide technical information about pressure control valves in water services. The majority of these valves are used where the pressure supplied from the...
This technical note has been developed as a guide to the Western Australian plumbing industry for the correct use and installation of air admittance valves (AAVs) for sanitary and drainage plumbing...
A recent Building and Energy audit program identified a need to clarify the approach for dealing with errors that may have been detected in certified building permit applications and their...