Bathroom Sink "Gurgling"

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by nin28, Sep 17, 2008.

  1. nin28

    nin28 Member

    Joined:
    Apr 15, 2007
    Location:
    New York
    I have a bathroom sink that after running the water for a minute or two will gurgle after the faucet is turned off. The sink drains perfectly fine. Is this an indication of something in the future that could go bad? Thank you.
     
  2. Furd

    Furd Engineer

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    Jul 3, 2007
    Occupation:
    Retired energy systems engineer
    Location:
    Wet side of Washington State
    Gurgling generally (not always) indicates a venting problem.
     
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  4. Cass

    Cass Plumber

    Joined:
    Nov 12, 2005
    Location:
    Ohio
    Yes a venting problem...a clogged vent or no vent.
     
  5. nin28

    nin28 Member

    Joined:
    Apr 15, 2007
    Location:
    New York
    Thanks for the replies. The sink is on the 2nd floor and about 3'-4' from the main waste pipe, which is vented on the roof. I don't get any gurgling from any other sinks in the house. Is it possible that this 4' run to the waste pipe needs its own vent? If that is the case I might just live with the gurgling because I would have to cut into a cast iron pipe and that really doesn't interest me. Thanks for any additional help!
     
  6. Cass

    Cass Plumber

    Joined:
    Nov 12, 2005
    Location:
    Ohio
    How old is the house?
     
  7. nin28

    nin28 Member

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    Apr 15, 2007
    Location:
    New York
    The house was built in 1959, I believe.
     
  8. Redwood

    Redwood Master Plumber

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    Dec 15, 2007
    Occupation:
    Service Plumber
    Location:
    Connecticut
    It is either a poorly vented p-trap or, an s-trap.
    A partial clog may be involved.
     
  9. nin28

    nin28 Member

    Joined:
    Apr 15, 2007
    Location:
    New York
    I will check the P-Trap and see if there is any clog there. Do you think I may have to run an auger through the waste pipe to clean it out? Thanks.
     
  10. bombjay

    bombjay New Member

    Joined:
    Mar 11, 2008
    A proper drain cleaning is in order.A drain cleaner can yank the trap and run up a little and make sure the vent is open and down to give the line a good cleaning.
    Good luck.
     
  11. nin28

    nin28 Member

    Joined:
    Apr 15, 2007
    Location:
    New York
    OK. I took everyone's advice and popped open the p-trap and guess what, not clogged at all. That was surprising. So then I detached the pipe running from the sink to the p-trap and found that that was where the clog was. The pipe had about 1 centimeter hole where the water could go through. So took apart all the piping and gave it a good cleaning. I just installed the sink last year and I can't believe how dirty it got so quickly. I've used drain cleaner and that did nothing. Maybe I just used the wrong type of drain cleaner. Oh well. Cleaned it the good old fashioned way. Thanks for everyone's help.
     
  12. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

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    Retired Systems engineer for defense industry.
    Location:
    New England
    As you found out, drain cleaners often don't do much...they are best avoided - save your money.
     
  13. Redwood

    Redwood Master Plumber

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    Dec 15, 2007
    Occupation:
    Service Plumber
    Location:
    Connecticut
    OMG who would have thought....:eek:
     
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