Given: A vertical soil stack 4″ in diameter has a cleanout at its base and runs directly into the building sewer, A cleanout is not required between the bulding sewer and the building drain if the cleanout is wit

Given: A vertical soil stack 4″ in diameter has a cleanout at its base and runs directly into the building sewer, A cleanout is not required between the bulding sewer and the building drain if the cleanout is wit