7.4.7.1.

(1) Every sanitary drainage system and storm drainage system shall be provided with cleanouts that will permit cleaning of the entire system.

(2) A cleanout fitting shall be provided on the upstream side and directly over every running trap.

(3) Every interior leader shall be provided with a cleanout fitting at the bottom of the leader or not more than 1 000 mm upstream from the bottom of the leader.

(4) Where a cleanout is required on a building sewer 8 in. or larger in size, it shall be a manhole.

(5) Where there is a change of direction greater than 45° in a sanitary building drain or a sanitary building sewer, a cleanout shall be installed at each change in direction.

(6) Every sanitary building drain or storm building drain shall be provided with a cleanout fitting that is located as close as practical to the place where the drain leaves the building.

(7) Every soil or waste stack shall be provided with a cleanout fitting,

(a) at the bottom of the stack,

(b) not more than 1 000 mm upstream of the bottom of the stack, or

(c) on a Y fitting connecting the stack to the building drain or branch.

(8) A cleanout shall be provided to permit the cleaning of the piping immediately downstream of an interceptor.

(9) Every indirect drainage pipe carrying waste from a food receptacle shall have a cleanout access at every change of direction of more than 45°.

(10) A cleanout shall be installed on a fixture drain serving a kitchen sink.