Water from upstairs sink coming up in downstairs sink

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by Michael Desta, May 5, 2014.

  1. Michael Desta

    Michael Desta New Member

    Messages:
    3
    Location:
    Kentucky
    I registered an account to ask this questions, and hopefully someone on this forum can help me out. I live on the first floor of a 2 story apartment building. It seems that the water from upstairs is coming up in our kitchen sink. Our bathroom is fine, and nothing comes up when we flush the toilet or take a shower. I drew up a diagram of how I think it works, but this is just how I make sense of it in my head. I am no plumber by any means, or have any working knowledge of how plumbing systems work, so bear with me on the drawing. Please let me know what you guys think, or if you have any questions. Thank you. plumbing-1.jpg
  2. asktom

    asktom Member

    Messages:
    529
    Location:
    Victor, MT
    The drains shouldn't be run the way you show, but they do connect and the drain is clogged after that happens. The drain needs to be cleaned. There should be a clean-out.
  3. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,487
    Location:
    Cave Creek, Arizona
    quote; The drains shouldn't be run the way you show,

    His drawing is simplistic, but it IS how a two story sink stack would be run, either with a revent or without depending on his code., or if he lives in Philadelphia.
  4. asktom

    asktom Member

    Messages:
    529
    Location:
    Victor, MT
    My point was how the problem needs to be solved.

    You should see how my drains are run! - a rural Montana house built (in an area where the only required inspections were on wells and septics) by a non-plumber.
  5. Michael Desta

    Michael Desta New Member

    Messages:
    3
    Location:
    Kentucky
    Thank you for the replies. I live in Nashville, TN. Would taking out the P-trap and putting a snake inside be a good idea to clean the drain?
  6. Terry

    Terry Administrator Staff Member

    Messages:
    14,889
    Location:
    Bothell, Washington
    That works!
  7. Michael Desta

    Michael Desta New Member

    Messages:
    3
    Location:
    Kentucky
    I appreciate everyone's input. The problem seems to be fixed now, using the method above (it took every bit of a 50ft. snake). We don't have to wash dishes in the bathroom sink anymore!
Similar Threads: Water upstairs
Forum Title Date
Plumbing Forum, Professional & DIY Advice, Tips & No cold water to upstairs toilet and shower Jan 7, 2014
Plumbing Forum, Professional & DIY Advice, Tips & 2 zone, hot water upstairs, steam radiators downstairs Oct 29, 2013
Plumbing Forum, Professional & DIY Advice, Tips & Takes too long for hot water upstairs. Jul 23, 2013
Plumbing Forum, Professional & DIY Advice, Tips & Water downstairs but only part of upstairs has water Apr 21, 2012
Plumbing Forum, Professional & DIY Advice, Tips & hot water pipe to upstairs sink issue ? Nov 11, 2009

Share This Page