Tub/Shower to Shower only: trap arm and venting

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Kyle Marsden

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Hello all, wonderful site have learned a lot over the last couple days. I typically do tile work but have been tasked with some plumbing work on my current project (rural job in Missouri, owner is NOT pulling permits)

Pictures attached are the re-work of a second floor drain and vent. Existing was tub and shower. New will be shower only.

Humbly, I would like some feedback on the attached pictures for code violations. My main concerns are:

1. Horizontal drain line has a vent take-off from a san tee on its back. My take is as long as the angle is between 45 deg and vertical this is ok.

2. Vent riser from san tee has two (2) 45 deg bends to hit the original vent stack location.

3. After the trap swivel, the trap arm has a 22.5 deg bend and a 90 deg bend to tie into the vent take-off san tee. My take is if horizontal change is <135 deg no clean out is required (possibly exempt because it's a trap arm)

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