2.4.2.3.(3)

Intent 1:

To exempt certain fixture drains from the requirement for an indirect connection in Subclauses 2.4.2.1.(1)(e)(iii) to 2.4.2.1.(1)(e)(iv), and to permit direct connection to pipes that:

• are terminated to form an air break above the flood level rim of fixtures that are directly connected to storm drainage systems, and
• are extended through roofs when fixtures on 3 or more storeys are connected to them.

This is to limit the probability that backflow will lead to sewage contamination of clear-water waste fixtures and devices, which could lead to unsanitary conditions, which could lead to harm to persons.