zhomes
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I am looking to set up the bathroom as pictured below.
Normally I would run a nice big stack up one of the side/interior walls of the bathroom and tie in to that. However in this bathroom there are heavy duty beams on each side of the bathroom supporting the bathroom side walls. The only decent place for me to get to the basement and the main stack is out the 'front' which is under the door. From there I can go down an interior wall and end up in the basement and work my way to the stack.
Since it is under the door I cant go straight up at that point with a vent, I am concerned about proper venting for the toilet(among other things)
I am wondering the following
1. Based on the attached drawing do I need a seperate vent for the toilet? I can add another wye closer to the toilet and go back toward the rear wall and get a 2" or so line in to the attic. Not easy but could be done.
2. I am assuming all the blue pipe would be 3" and the red would be 2" . I assume shouldnt go down to 1 1/2" Can I go down to 1 1/2" as a vent once I get above the shower and sink fixtures?
3. Is there anything glaring wrong with my layout?
Comments
1. I realize the wye's off the 3" line need to be pointing up at 45 degrees or greater. I am not sure if my diagrams skills reflect that.
2. tub trap is not shown
3. 1/4" per foot slope on all drains
4. sink will not be pedistal. it will be a regular sink cabinet. That big beam is in my way to come up right behind. My plan was to come up from a long sweep as close to the beam as possible and then use (2) 45s to get my in to the wall cavity, hoping to mimimize the backing up of the cabinet.
Normally I would run a nice big stack up one of the side/interior walls of the bathroom and tie in to that. However in this bathroom there are heavy duty beams on each side of the bathroom supporting the bathroom side walls. The only decent place for me to get to the basement and the main stack is out the 'front' which is under the door. From there I can go down an interior wall and end up in the basement and work my way to the stack.
Since it is under the door I cant go straight up at that point with a vent, I am concerned about proper venting for the toilet(among other things)
I am wondering the following
1. Based on the attached drawing do I need a seperate vent for the toilet? I can add another wye closer to the toilet and go back toward the rear wall and get a 2" or so line in to the attic. Not easy but could be done.
2. I am assuming all the blue pipe would be 3" and the red would be 2" . I assume shouldnt go down to 1 1/2" Can I go down to 1 1/2" as a vent once I get above the shower and sink fixtures?
3. Is there anything glaring wrong with my layout?
Comments
1. I realize the wye's off the 3" line need to be pointing up at 45 degrees or greater. I am not sure if my diagrams skills reflect that.
2. tub trap is not shown
3. 1/4" per foot slope on all drains
4. sink will not be pedistal. it will be a regular sink cabinet. That big beam is in my way to come up right behind. My plan was to come up from a long sweep as close to the beam as possible and then use (2) 45s to get my in to the wall cavity, hoping to mimimize the backing up of the cabinet.