Does main sewer stack need to be totally vertical, or can there be a small offset (see pic)? Also, I'm transitioning from a 4" below to a 3" above. There would be one toilet draining into 3" portion. First pic shows 22's with long stretch between. Second pic shows 45s. I need to move this over 3" to make room for a structural post.
Small bend in main sewer stack?
- Thread starter colinga75
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