Tie Bar Sink to Existing Bathroom Sink Plumbing

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by kdpaparelli, Jan 26, 2012.

  1. kdpaparelli

    kdpaparelli New Member

    Jan 26, 2012
    Hello. My Husband and I bought a finished home. We are wanting to turn part of an existing room into a wet bar area. The small bar sink will not be used for food of any kind.

    There is an existing bathroom with sink, toilet and shower on a joining wall. We are wanting to just saw a small hole through the ajoining wall, through the existing vanity, and tie the bar sink into the existing sink. Can this be accomplished without causing draining, etc. issues?
  2. cacher_chick

    cacher_chick Test, Don't Guess!

    Jan 5, 2008
    Test, Don't Guess!
    Land of Cheese
    The way you are describing it, it would not meet the minimum requirements of any plumbing code.

    We would to see the layout of the bathroom plumbing, the pipe sizes, and distance and location to each fixture's vent before suggesting what would meet code. A bar sink requires a proper trap and vent, just like any other sink.

    Here is a nice link to Bert Polk's plumbing tips
    Last edited by a moderator: Jan 26, 2012
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  4. hj

    hj Moderator & Master Plumber Staff Member

    Aug 31, 2004
    Cave Creek, Arizona
    There are too many unknowns to give an answer, and you will not know if, or how, it can be done until you open the wall. One thing you cannot do is run the pipe into the lavatory cabinet and connect to its drain line. Even if it were permitted, you would seldom have enough room to do so.
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