Venting a Bathroom Shower addition

Discussion in 'Remodel Forum & Blog' started by C02maker, Aug 12, 2018.

  1. C02maker

    C02maker New Member

    Aug 12, 2018
    I am adding a new bathroom on to a second story. I have the vent at the highest point in the line followed by the shower and then running about 10 feet and dropping down into the basement. Right now I do not have anything else in the shower line. I am wondering if it is ok for the vent to be upstream of the shower drain. I am attaching a photo of my proposed plan. Thanks in advance for any thoughts on this!

  2. Terry

    Terry Administrator Staff Member

    Aug 17, 2004
    Bothell, Washington
    Not the way you have shown. The vent should be vertical for the shower vent, unless you would be having a lav run in 2" which allows snaking to keep the line clear. The way you have it shown, the line won't pass an inspection. Normally I would run the 2" to the wall, install the vent vertical with a combo and then 90 back to pick up the shower.


    Here is a nice link to Bert Polk's plumbing tips
    Last edited: Aug 12, 2018
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