Part B3 Non-drinking water services
Introduction to this Part
This Part sets out the requirements for the design, construction, installation, replacement, repair, alteration and maintenance of any part of a non-drinking water service of a property. It covers from the point of connection to the points of discharge.
The Objective of this Part is to—
- safeguard people from illness, injury or loss (including loss of amenity) due to the failure of a non-drinking water installation; and
- ensure that a non-drinking water installation is suitable; and
- conserve water and energy; and
- safeguard the environment; and
- safeguard public and private infrastructure; and
- ensure that a non-drinking water installation throughout its serviceable life will continue to satisfy the requirements of Objectives (a) to (e).
Sanitary fixtures, sanitary appliances and supply outlets provided with non-drinking water must be adequate.
Non-drinking water must be supplied through plumbing installations in a way that avoids the likelihood of inadvertent contamination of any drinking water service, minimise any adverse impact on building occupants, the Network Utility Operator's infrastructure, property and the environment.
BP3.1 Water supply
Pipes, pipe outlets, fittings, storage and holding tanks that are part of a non-drinking water service must be clearly identified.
BP3.3 Design, construction and installation
Anon-drinking water service must ensure the following:
Access for maintenance of mechanical components and operational controls.
The system, appliances and devices can be isolated for testing and maintenance.
There are no Verification Methods in this Part.
B3.2 Distribution of non-drinking water
A non-drinking water service must not be connected to any outlet that supplies water for—
human consumption; or
food preparation; or
food utensil washing; or
B3.3 General requirements
The design, construction, installation, replacement, repair, alteration and maintenance of a non-drinking water service must be in accordance with Section 9 of AS/NZS 3500.1.
Explanatory information: Cross-volume considerations
NCC Volume One Class 2 to 9 buildings
NCC Volume Two Class 1 and 10 buildings
Excavations for pipework adjacent to a building and footings
Termite management for attachments to buildings and penetrations through a slab
Penetrations for pipework through a vapour barrier
Pipework in timber bearers and joists of solid timber or engineered wood products
Fittings, fixtures and pipework installations in steel framed construction
Penetrations through a fire-resisting wall or floorC3 Protection of openings
Fixtures or fittings in a wet areaF1 Damp and weather proofing
Service pipework external to the building and penetrations through roof cladding in a bushfire prone area
Pipework sound insulation