Pipe Route Question

Discussion in 'Remodel Forum & Blog' started by ptomt77, May 13, 2010.

  1. ptomt77

    ptomt77 Designer

    Apr 10, 2010
    In the attached drawing, I show a proposed pipe route for a 2" dwv from a bathroom sink to the main stack in a 2nd floor bathroom. I would like to know if the route is permissable and of not, can someone give me instructions on a better route.

    I can not go straight and "put-in" a new stack due to existing heating ducts.

    Also I would like thank everyone on this forum. I have learned alot just from reading the questions and answers.

    Attached Files:

  2. Terry

    Terry Administrator Staff Member

    Aug 17, 2004
    Bothell, Washington
    That isn't a wet vent situation there.
    The sink or lav needs a vent at the sink location. The vent needs to take off at the level of the trap arm, not the floor. Unless you are using an AAV there, the vent needs to go through the roof.

    You can't use two 90's, through the joists, you would be better off with two 45's and cutting a slot in the joist to allow for that.
    The less change in direction the better. Any horizontal change of direction more than 135 degrees requires a cleanout. Two 90's is 180 degrees.
  3. Sponsor

    Sponsor Paid Advertisement

Similar Threads: Pipe Route
Forum Title Date
Remodel Forum & Blog Best way to route pipes Dec 6, 2005
Remodel Forum & Blog What Is This Pipe ? AC condensate drain connection Sep 21, 2015
Remodel Forum & Blog Sealing vertical pipe penetrations through Concrete? May 20, 2015
Remodel Forum & Blog Hiding washer standpipe and valves Dec 10, 2014
Remodel Forum & Blog how to insert a charcole filter on vent pipe Apr 29, 2014

Share This Page