Can I use "in wall vent" instead of thru roof for shower?

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by hawksnest, May 17, 2006.

  1. hawksnest

    hawksnest New Member

    Messages:
    6
    I've used an in-wall type vent (air valve) for a toilet before instead of venting through the roof. Would it work for a shower?

    Thanks in advance for your advice.
  2. Cass

    Cass Plumber

    Messages:
    5,980
    Location:
    Ohio
    There is no "in wall" vent that I know of. There is a vent called an AAV (air admitance valve) that can be used but yuo can not put it in a wall.
  3. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,636
    Location:
    Cave Creek, Arizona
    vent

    And at least one vent pipe has to be extended through the roof. You cannot use all AAV's.
  4. Sluggo

    Sluggo New Member

    Messages:
    62
    Location:
    WA

    Oatey, for one, has a wall box with a louvered grate so that you can install it in the wall.
  5. Terry

    Terry Administrator Staff Member

    Messages:
    15,005
    Location:
    Bothell, Washington
    [​IMG]

    That kind of makes it not sealed up in a wall. This is a box for the wall that has access for replacement, and allows air to get to the AAV.
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