This guide explains the general principles of the plumbing codes and standards for sanitary plumbing in Aotearoa New Zealand. Issues such as backflow prevention, protection from scalding and explosion by hot water installations and the use of air admittance valves are explained in clear and simple text. This edition was updated and released in April 2024 to reflect recent changes to AS/NZS 3500 Plumbing and drainage standards and amendments to the New Zealand Building Code acceptable solutions for clauses G12 Water supplies and G13 Foul water.
Disclaimer: Please note that our publications reflect the regulations and best practices on the date of release, which is shown on the publication. As regulations and industry standards evolve, we always recommend that our publications be read in conjunction with the latest building code clauses and standards.
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