(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 6 of 6

Thread: 3/4 bath remodel in basement

  1. #1

    Default 3/4 bath remodel in basement

    Drain rough in for a 1/2 bath in basement.
    1 1/2" vent at the vanity drain line.
    Toilet drain is upstream of the vent.
    Drains beneath concrete.
    I want to add a shower into the mix.

    I plan to install a 3 x 2 wye after the vent for the vanity drain line.
    Is it ok to run the shower drain line in this way?
    Or should it be tapped in between the vent and the toilet?

    Code references would be great, but general comments on how either way would effect drainage would also be good.

    thanks

  2. #2

    Default

    so to elaborate, can I place my 3 x 2 wye in the spot in the attatched diagram?

  3. #3

    Default

    diagram here
    Attached Images Attached Images

  4. #4

    Default

    My nonpro opinion is that it will work. I'd also run run a shower vent off the shower branch drain b4 it hits the main line. This means running the shower branch drain under a wall b4 it hits the main drain.

    Toilet venting confounds me. I know it's advisable for each fixture to have it's own vent, but I know there are exceptions and the wet vent you have might be permissible for the toilet. I'd check though.

    That's just me, though.

    Also, the 'tee' that connects the sink vent to the main line should be a wye, and the 'tee' that connects the sink trap arm to the vent/drain should be a sanitary tee or better.
    Last edited by prashster; 12-20-2006 at 06:51 AM.
    (important note: I'm not a pro)

  5. #5
    Homeowner geniescience's Avatar
    Join Date
    Nov 2005
    Location
    humid summers hot, humid winters cold
    Posts
    2,152

    Default distant? close?

    --> Distances determine whether a vent can be used for two fixtures or only one.
    Quote Originally Posted by ccbrands1
    1 1/2" vent at the vanity drain line.
    Toilet drain is upstream of the vent.
    so far so good, all is normal. Toilets are always the farthest upstream, and the first vent in the system is the toilet's vent.
    Quote Originally Posted by ccbrands1
    Drains beneath concrete.
    not sure what this means precisely.
    Quote Originally Posted by ccbrands1
    I plan to install a 3 x 2 wye after the vent for the vanity drain line.
    Is it ok to run the shower drain line in this way?
    Or should it be tapped in between the vent and the toilet?
    perfectly normal to do it this way. Totally not good to do it the opposite way that you described, i.e. between the vent and the toilet.

    The big unanswered questions are distances. This is important; it determines whether a vent can be used for two fixtures or only one.

    david

  6. #6

    Default

    sorry...i meant that the drains are underneath concrete...you probably assumed this considering it is in a basement

    toilet drain is about 2 - 3 feet from vent

    shower drain is about 4 - 5 feet from where it will tap into the main drain line.

    shower drain tap on main line can be within 1 foot of the vent if needed.

    please advise if these distances would be sufficient.

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
  •