venting tub through waste drain?

Discussion in 'Shower & Bathtub Forum & Blog' started by gt82, Oct 6, 2005.

  1. gt82

    gt82 New Member

    Joined:
    Oct 3, 2005
    I have a toilet that has its own vent that comes off about 8" below the top of the toilet drain. it comes out with a 3" diameter and then reduces to 2" as it goes up the wall. can I tye the tub drain in down stream and use the toilet vent to vent the tub.would that beallowed?

    thanks for any feed back.
     
  2. hj

    hj Moderator & Master Plumber Staff Member

    Joined:
    Aug 31, 2004
    Occupation:
    Plumber
    Location:
    Cave Creek, Arizona
    tub

    If you stated the problem correctly, and we have to assume you did, then no you cannot do that. The flushing water from the toilet would create a venturi effect and pull the trap seal from the tub's "P" trap.
     
  3. Sponsor

    Sponsor Paid Advertisement

     
Similar Threads: venting through
Forum Title Date
Shower & Bathtub Forum & Blog Venting and existing drain connection concerns Mar 14, 2015
Shower & Bathtub Forum & Blog Bathroom Exhaust Fan Venting Mar 11, 2015
Shower & Bathtub Forum & Blog Your Beach House Shower: Best way of preventing sand build up in drain Dec 19, 2014
Shower & Bathtub Forum & Blog Preventing Build Up in Shower Corners: Installation Tips for NobleSeal CIS Nov 28, 2014
Shower & Bathtub Forum & Blog Sorry, another Venting Question - Washer and Vanities Sep 3, 2014

Share This Page