Second opinion on plumbing plan

Discussion in 'IPC Plumbing Code Questions' started by itsjustfarris, Dec 17, 2019.

  1. itsjustfarris

    itsjustfarris New Member

    Joined:
    Dec 17, 2019
    Location:
    Middle tn
    doing a new install and haven’t used AAVs much before, wanted to get a second opinion on the layout and if I was missing anything. Also the kitchen sink drain will be exposed coming up in the middle of the cabinet and. I wanted to know if anyone has any good tips or tricks on how to better do that. Thanks all and I hope my middle school art class was enough for this picture haha

    D0CE7616-0356-4819-8B6A-9798033E931F.jpeg
     
  2. Terry

    Terry Administrator Staff Member

    Joined:
    Aug 17, 2004
    Occupation:
    Plumber
    Location:
    Bothell, Washington
    Only bathroom fixtures can be on a wet vent. The kitchen sink can't be included with that. The kitchen sink should come in downstream of the bathroom.
     
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  4. itsjustfarris

    itsjustfarris New Member

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    Dec 17, 2019
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    Middle tn
    So the drain on the sink needs to run down (kind of parallel) and tie in past the toilet? Anything else?
     
  5. Terry

    Terry Administrator Staff Member

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    Aug 17, 2004
    Occupation:
    Plumber
    Location:
    Bothell, Washington
    You need proper sized cleanouts. 3" on the toilet and 2" on the kitchen sink.
     
  6. itsjustfarris

    itsjustfarris New Member

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    Dec 17, 2019
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    Middle tn
    And that’s it, all else is good? Thank you for helping!
     
  7. hj

    hj Master Plumber

    Joined:
    Aug 31, 2004
    Occupation:
    Plumber
    Location:
    Cave Creek, Arizona
    I have never HAD to connect the kitchen sinks after the bathroom. In fact, I have NEVER done it unless that is how the house was arranged, (and it is not how MY plumbing is done in my own house).
     
  8. itsjustfarris

    itsjustfarris New Member

    Joined:
    Dec 17, 2019
    Location:
    Middle tn
    So it would be fine to still tie it in like it’s pictured?
     
  9. KevinSkinner

    KevinSkinner New Member

    Joined:
    Mar 11, 2021
    Location:
    Ontario
    Looks good from my perspective, but maybe have a professional take a look at the plan? I mean I think it's the most cost effective option, because if something ends up going wrong it's going to cost you a lot more than just going with a professional in the first place. I'm saying this from my personal experince, which was not that fun to be honest. I ended up reaching out to some great guys that offer plumbing services to repair the mess that I made and now at leats I know the whole thing is professionally installed.
     
    Last edited: Mar 23, 2021
  10. Jeff H Young

    Jeff H Young In the Trades

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    Feb 27, 2020
    Location:
    92346
    As far as I can tell Terry seems totally correct . Kitchen drain must not be flowing through the wet vent for a bathroom group. Me , Terry, and HJ are professionals but others may chime in. HJ might not have noticed that there was a horizontal wet vent I cant say why he has different opinion.
    I would recommend ditching the AAV unless there is a problem tying a vent to the stack just makes it a little cleaner and vents wont fail
     

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