kevman
New Member
Hello,
Long term lurker first time poster. Very impressed with the information on this website. My apologies in advance if these questions have been asked before.
I'm in the middle of a bathroom renovation that includes the complete stack replacement from Cast Iron to ABS. I've pulled permits but am not always getting clear on consistent answer from my municipality over the phone so I'd just like to clarify some things with my design. Please let me know if you see any issues.
First of all, I've attached a sketch of the above view of the bathroom. The toilet will be ~5' from the main 4" stack. This line will run under the joists and connect to the stack with a 4"x4"x3" Sanitary Tee. I was hoping to go through the joists but according to the Canadian National Building code I can only drill up to 1/4 which is only 2.8125 of a 2x12 joist. I will then be plumbing my sink and shower into this toilet line in the joist space as detailed in the sketch. I've been informed that running the sink into the toilet drain with a wye and 45° is OK. I've also been informed that running the shower into the sink drain/vent line is OK. What I'm confused on is whether or not I can use a sanitary tee to connect the shower to the short vertical leg of the sink drain/vent before it reaches the wye to the toilet? The shower drain P-trap will be approximately 4' from the toilet leg.
Next, I'm confused on how to properly install a clean out at the base of the vertical sink drain. I had planned on using a long sweep 90° at the base since the transition will be made in a concealed joist space. I know I can put a clean out at the base of the wall but I plan to use a floating vanity with wall tile right to the floor and as such would rather not have a clean out visible. Can the sink P-trap be removed to be used as a clean out? Is a clean out on this short leg necessary? The complete horizontal distance of the sink drain/vent will be approximately 4' from the base of the vertical drain. (Two, 2' sections with a 90° long sweep).
As an FYI the vent above the sink will continue on to the attic as a 2" line and then connect to the main 4" vent in the attic.
Finally, and this may seem silly, but is there anything wrong with having the rough plumbing off centre of the vanity? I plan to use an IKEA Godmorgon vanity so it looks like the weird proprietary plumbing might work better with an offset drain anyway. I ask this question because in a perfect world I could centre the drain line with the vanity by hugging the stud as shown in the attached picture. However, there is some joist blocking that is in the way at the base of the wall. It would be much easier to not have to remove or alter this blocking and instead run the plumbing off to one side of the vanity. My OCD is bothered by things not being centered but other than that is there a reason I should not do this?
Thanks in advance for the help and insight.
Long term lurker first time poster. Very impressed with the information on this website. My apologies in advance if these questions have been asked before.
I'm in the middle of a bathroom renovation that includes the complete stack replacement from Cast Iron to ABS. I've pulled permits but am not always getting clear on consistent answer from my municipality over the phone so I'd just like to clarify some things with my design. Please let me know if you see any issues.
First of all, I've attached a sketch of the above view of the bathroom. The toilet will be ~5' from the main 4" stack. This line will run under the joists and connect to the stack with a 4"x4"x3" Sanitary Tee. I was hoping to go through the joists but according to the Canadian National Building code I can only drill up to 1/4 which is only 2.8125 of a 2x12 joist. I will then be plumbing my sink and shower into this toilet line in the joist space as detailed in the sketch. I've been informed that running the sink into the toilet drain with a wye and 45° is OK. I've also been informed that running the shower into the sink drain/vent line is OK. What I'm confused on is whether or not I can use a sanitary tee to connect the shower to the short vertical leg of the sink drain/vent before it reaches the wye to the toilet? The shower drain P-trap will be approximately 4' from the toilet leg.
Next, I'm confused on how to properly install a clean out at the base of the vertical sink drain. I had planned on using a long sweep 90° at the base since the transition will be made in a concealed joist space. I know I can put a clean out at the base of the wall but I plan to use a floating vanity with wall tile right to the floor and as such would rather not have a clean out visible. Can the sink P-trap be removed to be used as a clean out? Is a clean out on this short leg necessary? The complete horizontal distance of the sink drain/vent will be approximately 4' from the base of the vertical drain. (Two, 2' sections with a 90° long sweep).
As an FYI the vent above the sink will continue on to the attic as a 2" line and then connect to the main 4" vent in the attic.
Finally, and this may seem silly, but is there anything wrong with having the rough plumbing off centre of the vanity? I plan to use an IKEA Godmorgon vanity so it looks like the weird proprietary plumbing might work better with an offset drain anyway. I ask this question because in a perfect world I could centre the drain line with the vanity by hugging the stud as shown in the attached picture. However, there is some joist blocking that is in the way at the base of the wall. It would be much easier to not have to remove or alter this blocking and instead run the plumbing off to one side of the vanity. My OCD is bothered by things not being centered but other than that is there a reason I should not do this?
Thanks in advance for the help and insight.