International Plumbing Code Chapter 9 is all about sanitary drainage systems. This video presentation covers IPC section 906 which is all about DWV vent sizing. This video includes explanations about the requirements for vent sizes as well as demonstrations on how to size drainage vent pipe.

This video is based on the 2021 International Plumbing Code, so chapter 9 might look a little different than previous or later versions of the code. Generally, the code requirements do not change much from one edition to the next.

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