(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 3 of 3

Thread: Shower Vent to Main Vent joint

  1. #1

    Default Shower Vent to Main Vent joint

    Please see atached pics.

    I am joining the shower vent to the main vent.
    Due to framing obstructions, can I join the vents like in pic. A
    with the shower vent dropping (only 3-4 inches) before it tees into
    the main vent (my concern is the high point of the shower vent is
    higher than the tee- do sewer gases like to collect in this high area instead
    of venting out?) or do I have to join them like in pic. B?

    Also, for this joint can I just use a regular tee (or sani tee) or do I need
    a 'vent tee'.
    Attached Images Attached Images  

  2. #2
    Retired Defense Industry Engineer jadnashua's Avatar
    Join Date
    Sep 2004
    Location
    New England
    Posts
    21,395

    Default

    As I understand it, the vent must essentially run up from the trap, it can't have any downward leg. Condensation or a backup could fill it and then block it.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  3. #3
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,633

    Default vent

    Plan B is the official way, using any kind of tee you want to. Plan A will also work, but would not pass an inspection.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •