Can I vent two sinks with a single foot vent upstream? thanks

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by k52, Feb 13, 2012.

  1. k52

    k52 New Member

    Feb 13, 2012
    I have an island sink and it is vented with a foot vent as required. Down stream about 8 ft. from this island sink (and foot vent) I have a kitchen sink against a wall with no opportunity to vent it. (It will be very hard to vent it like I did my island sink). Can it be wet vented using the 3 inch waste line that is from the vented island sink? (another way of asking is) Can the foot vent in an island vent two sinks where one is down stream of the foot vent?

    ALSO There has been some sugestion that the waste from a toilet even further upstream will empty the ptrap in the sink that is vented from the island sink upstream! Is that a problem?

    I can draw a picture if that helps!

    thanks k52
  2. Tom Sawyer

    Tom Sawyer In the Trades

    Nov 29, 2010
    what in hell is a foot vent? and yes, draw a picture.
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  4. Terry

    Terry Administrator Staff Member

    Aug 17, 2004
    Bothell, Washington
    Well...........the reason for a proper vent is to prevent the toilet from siphon the traps farther down the line.
    Waiting for the picture.
  5. Winslow

    Winslow Plumber

    Dec 30, 2005
    No you cannot do it that way, it requires either it's own standard vent or another island vent setup.
  6. hj

    hj Moderator & Master Plumber Staff Member

    Aug 31, 2004
    Cave Creek, Arizona
    The question is NOT whether you can do it, but HOW can you do it. The way your question is posted you cannot do it that way.
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