(1)
Sanitary drainage systems and storm drainage systems shall be provided with cleanouts that will permit cleaning of the entire system. (See Note A-7.4.7.1.(1))
(2)
A cleanout fitting shall be provided on the upstream side and directly over every running trap.
(3)
Interior leaders shall be provided with a cleanout fitting at the bottom of the leader or not more than 1 m upstream from the bottom of the leader.
(4)
Where a cleanout is required on a building sewer of NPS 8 or larger, it shall be a manhole.
(5)
A building sewer shall not change direction or slope between the building and public sewer or between cleanouts, except that pipes not more than NPS 6 may change direction
(a)
by not more than 5° every 3 m, or
(b)
by the use of fittings with a cumulative change in direction of not more than 45°.
(6)
Building drains shall be provided with a cleanout fitting of NPS 4 or larger that is located as close as practical to the place where the building drain leaves the building. (See Note A-7.4.7.1.(6))
(7)
Stacks shall be provided with a cleanout fitting
(a)
at the bottom of the stack,
(b)
not more than 3 m 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 trap arm serving a kitchen sink as close as practical to the trap outlet and shall be readily accessible.