NCC 2022 Volume Three - Plumbing Code of Australia
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B1
Part B1 Cold water servicesPart B1 Cold water services
A cold water service must be in accordance with AS/NZS 3500.1, with the following additions to clause 5.4.2: (l) Where valves are located below ground within the property boundary, they shall be provided with a surface box and riser. The box lid shall be permanently marked with a “W”.