7.4.2.3.Direct Connections

(1) Two or more fixture outlet pipes that serve outlets from a single fixture that is listed in Clause 7.4.2.1.(1)(d) may be directly connected to a branch that (a) has a nominal pipe size of not less than NPS 1¼, and (b) is terminated above the flood level rim of a directly connected fixture with a minimum diameter waste of 1½ in. to form an air break. (2) Fixture drains from fixtures that are listed in Subclauses 7.4.2.1.(1)(e)(i) and (ii) may be directly connected to a pipe that (a) is terminated to form an air break above the flood level rim of a fixture that is directly connected to a sanitary drainage system, and (b) is extended through the roof when fixtures that are on 3 or more storeys are connected to it. (3) Fixture drains from fixtures that are listed in Subclauses 7.4.2.1.(1)(d)(iii) to (vi) may be directly connected to a pipe that, (a) is terminated to form an air break above the flood level rim of a fixture that is directly connected to a storm drainage system, and (b) is extended through the roof when fixtures that are on 3 or more storeys are connected to it. (4) Every waste pipe carrying waste from a device for the display, storage, preparation or processing of food or drink shall be trapped and have a minimum diameter equal to the diameter of the drain outlet from the device.