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I‘m relocating my bathroom fixtures and laid out my plumbing using a wet vent. I would likefeed back about whether this is a good plan. Do I need another vent for the shower or suggestions on different layout?

See drawing. The cleanout is the existing drain. Added different layout with toilet going perpendicular to drain,

Hi All, I relayed the plumbing but have to move my drain out to make room to fit the fittings. I jog the drain with (2) 22.5 elbows, is this allowed 22.5 to use in horizontal? See Dwg-3, Thanksenter image description here

enter image description here 2: (https://i.stack.imgur.com/qVl63.jpg)enter image description here

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    What plumbing code is adopted in your Local Area Having Jurisdiction (LAHJ)? The various codes are aligned in intent but different in details. I don't see anything screamingly wrong under the "Mostly IPC with local changes" I have to deal with. But there are many, many options of ways to vent things in the IPC, so winkling out which bit applies can be tricky sometimes. And the UPC or other code can differ on various points.
    – Ecnerwal
    Sep 11, 2020 at 1:21
  • Hi, I’m in Southern California and I think is the UPC, so I’m good with one wet vent? Thanks for your response.
    – Raul C
    Sep 11, 2020 at 2:13
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    Under IPC you have "a bathroom group" which is specifically blessed, and also your vertical wet vent is 2" and only carrying 1 DFU (of drainage - venting 6, or 5 if the toilet is low-enough flow), while the horizontal wet vet is 3" and only carrying 6 DFUs, both of which are well within the IPC limits. Someone with a better handle on UPC will be along in a while, I'm reasonably sure.
    – Ecnerwal
    Sep 11, 2020 at 2:27
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    if it's convenient I'd go with shallower bends in the 3" cleanout, (like 15 degrees or less) if anyone has to use the cleanout the straighter it is the better.
    – Jasen
    Sep 11, 2020 at 11:45
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    One of the most detailed plumbing previews I have seen. This would pass in my area for sure - 2" venting plenty for standard bathroom. Jasen makes a good point too. I have seen sharp bends in cleanouts be a PITA to deal with.
    – DMoore
    Sep 11, 2020 at 15:30

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All of these layouts look good. The venting should be fine. You're connecting the lines with wyes, not tees, which is good. 45° Bends in the 3" cleanout line should be fine; a snake will easily make the turn.

Altogether, it looks like you've put a lot of thought into this. My one recommendation would be to check your state venting code to see the maximum distance allowed between a drain and its vent, just to make sure everything is close enough. I don't foresee a problem, but it doesn't hurt to check.

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  • I think it depends on the size of the pipe but I’ll check. Thanks
    – Raul C
    Sep 17, 2020 at 2:59

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