Plumbers' technical note – Reticulation cut-ins and backflow prevention
All documents issued prior to 1 July 2017 were issued by the former Department of Commerce. Documents listed here are the latest versions available, but may be subject to review. For more information on this document, please contact email@example.com.
This technical note responds to issues raised by licensed plumbers regarding the installation of reticulation/irrigation cut-ins and backflow prevention, 40 mm traps (using products with built-in air admittance valves), vacuum sewer and boundary trap installations and venting.
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