Rod Gilbert
New Member
Hello!
First, I would like to say thank you (as a DYI'er) for such an informative forum and to those who offer their time and expertise. I have spent many countless hours reading various threads about plumbing. Second, I would like to make this clear that I'm no plumber, and don't pretend to be one. In fact if I hadn't purchased a 'money pit' of a home, and if I had the money, I would be hiring a plumber for my renovations. I've purchased books, asked lots of questions and spent countless hours on the Internet. That said, I've run some initial waste and vent pipes (note: Where I live in Canada we must use ABS), and would like some professional advice. I will try to briefly outline what I've done so the attached photos make sense. Rather than ask a number of specifics, I'll wait for you to point out the errors! Sorry, I'm fairly sure of a few no, no's!
I'm building a full bath and half bath that share a 2x6 wall.
The first pic shows the crawl space with a supporting pony wall (previous morons cut out floor joists!) for the main floor of a one story home.
What you see is a branch to the future main bath on the left, and a branch to the future half bath to the right of the supporting wall.
These 3"pipes meet with a wye and join to the main waste line out to the septic field. On the left run, the far vertical pipe is the 3" vent stack out the roof. I continued beyond this (toward the viewer) to pass under the toilet about 2 feet away. The bathtub will join the 3" waste line about two feet down stream of the vent stack and is this wye is not visible in the photos.
In the second photo taken from the side, you can see a 3" x3" x 1 1/2" wye to the right(covered in plastic and tape) which will drain the vanity sink about 40" to the left. This wye is between the toilet and the stack. Upstream(left) of the toilet I continued the 3" pipe for a cleanout. Off the top I exit with a 2" pipe as a vent which, although on a slope, I assume is considered 'horizontal' for 16" until I can go vertically up through the floor and 2x6 wall separating the bathrooms. I then use a 90 elbow and tie it into the 3" vent stack about 56" off the floor.
The last photo shows the right run of 3" pipe for the half bath. In the distance is the toilet drained by a 3" wye and 45 elbow. Next in the foreground (upstream) I come off the top with a 2" vent pipe and run left in a similar manner as before, up through the 2x6 wall and tie into the horizontal 2" vent pipe and then stack as described before. In the immediate foreground (covered in green) is a 1 1/2" tee (should have been a wye?)which is to drain the half bath vanity sink. The blue cap will become a clean out.
OK, I truly apologize for this 'novel' but I hope I've described my plans clearly enough. Please comment on anything that you see/I've described that can help me do this correctly. I live in an "unorganized" municipality which does not require an inspector; saying that, however, I want this to be done correctly --- even if my ego gets bruised and I have to cut stuff out!!! I would like to think there aren't any mistakes but there's one I think for sure I've made ---- venting behind or upstream of the toilet by running a 'horizontal' vent below flood level of the fixture. I don't think I even needed to do it for the left (main bath) run, but I thought the half bath toilet needed the vent because it's about 2.5 feet from the wye which is about 4.5 feet down stream from the 3" vent stack.
Thanks in advance for any advice and I do understand that what I've presented here is a huge project!
Kind regards!
First, I would like to say thank you (as a DYI'er) for such an informative forum and to those who offer their time and expertise. I have spent many countless hours reading various threads about plumbing. Second, I would like to make this clear that I'm no plumber, and don't pretend to be one. In fact if I hadn't purchased a 'money pit' of a home, and if I had the money, I would be hiring a plumber for my renovations. I've purchased books, asked lots of questions and spent countless hours on the Internet. That said, I've run some initial waste and vent pipes (note: Where I live in Canada we must use ABS), and would like some professional advice. I will try to briefly outline what I've done so the attached photos make sense. Rather than ask a number of specifics, I'll wait for you to point out the errors! Sorry, I'm fairly sure of a few no, no's!
I'm building a full bath and half bath that share a 2x6 wall.
The first pic shows the crawl space with a supporting pony wall (previous morons cut out floor joists!) for the main floor of a one story home.
What you see is a branch to the future main bath on the left, and a branch to the future half bath to the right of the supporting wall.
These 3"pipes meet with a wye and join to the main waste line out to the septic field. On the left run, the far vertical pipe is the 3" vent stack out the roof. I continued beyond this (toward the viewer) to pass under the toilet about 2 feet away. The bathtub will join the 3" waste line about two feet down stream of the vent stack and is this wye is not visible in the photos.
In the second photo taken from the side, you can see a 3" x3" x 1 1/2" wye to the right(covered in plastic and tape) which will drain the vanity sink about 40" to the left. This wye is between the toilet and the stack. Upstream(left) of the toilet I continued the 3" pipe for a cleanout. Off the top I exit with a 2" pipe as a vent which, although on a slope, I assume is considered 'horizontal' for 16" until I can go vertically up through the floor and 2x6 wall separating the bathrooms. I then use a 90 elbow and tie it into the 3" vent stack about 56" off the floor.
The last photo shows the right run of 3" pipe for the half bath. In the distance is the toilet drained by a 3" wye and 45 elbow. Next in the foreground (upstream) I come off the top with a 2" vent pipe and run left in a similar manner as before, up through the 2x6 wall and tie into the horizontal 2" vent pipe and then stack as described before. In the immediate foreground (covered in green) is a 1 1/2" tee (should have been a wye?)which is to drain the half bath vanity sink. The blue cap will become a clean out.
OK, I truly apologize for this 'novel' but I hope I've described my plans clearly enough. Please comment on anything that you see/I've described that can help me do this correctly. I live in an "unorganized" municipality which does not require an inspector; saying that, however, I want this to be done correctly --- even if my ego gets bruised and I have to cut stuff out!!! I would like to think there aren't any mistakes but there's one I think for sure I've made ---- venting behind or upstream of the toilet by running a 'horizontal' vent below flood level of the fixture. I don't think I even needed to do it for the left (main bath) run, but I thought the half bath toilet needed the vent because it's about 2.5 feet from the wye which is about 4.5 feet down stream from the 3" vent stack.
Thanks in advance for any advice and I do understand that what I've presented here is a huge project!
Kind regards!
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