TN CMC-A Plumbing Practice Questions - Tennessee Plumbing (CMC-A) Contractor Examination Exam

Per the 2021 International Plumbing Code, the building drain becomes the building sewer at which point?

At the first cleanout inside the foundation wall 30 inches in developed length of pipe beyond the exterior walls of the building 10 feet beyond the exterior walls of the building At the public sewer tap, regardless of developed length

Correct Answer:

30 inches in developed length of pipe beyond the exterior walls of the building

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