NCC 2022 Volume Three - Plumbing Code of Australia


Part B3 Non-drinking water services

Part B3 Non-drinking water services

NSW B3D3 General requirements2019: NSW B3.3

Delete clause B3D3 and insert NSW B3D3 as follows:

A non-drinking water service must be in accordance with AS/NZS 3500.1 with the following additions to clause 10.3—

  1. 10.3(d): Top up from a drinking water supply shall be by an indirect trickle top up with a visible air gap external to the tank; and
  2. 10.3(e): There shall be no connection between treated greywater systems and drinking water, rainwater or other sources of supply.