orcas
New Member
Hi:
I am installing a small bathroom with a shower, w/c, and hand sink on a second story. The bathroom is serviced by a 3" soil stack. I am very constricted in vertical runs as the structure has double rim joists (total 4" thick) under the 2x6 wall framing, leaving only a little more than an inch to pass between floors within the wall cavity.
I think I managed the w/c by going with a wall hung unit mounted on a 2x6 bump-out. It drain to the stack via a Y fitting at about a 45 degree angled run of about 3 feet. I currently have no vent above the entrance into the stack, ok so far?
My bigger challenge is the shower; my intention is to run it into the other branch of the Y (this is a three-pronged Y, the middle is the continuing vent to the roof), my problem is finding a way to vent it. As I mentioned above, I can't pass pipe more than an inch (OD) between floors within the exterior walls. To complicate matters further, the one interior wall of the shower is directly over an engineered I joist, if I cut out enough for a pipe to pass the joist would be essentially useless.
I think this question has been asked about a million times, but here's one more; if the shower trap and line, 2 inch pvc, is in within 5 feet of tying into the stack do I still need a vent upstream from the stack. The project is in Washington state, if that makes a difference cade-wise.
Just to tie up loose ends, that hand sink will tie into the stack about 2 feet above the Y, 1 1/4 inch, it will be the terminal fixture, but I can put a dedicated vent on it as it is above the double rim joist blockage.
Sorry for the wordiness, but I hope I presented things adequately. I have looked at this site a number of time and greatly appreciate the knowledge that is shared.
I am installing a small bathroom with a shower, w/c, and hand sink on a second story. The bathroom is serviced by a 3" soil stack. I am very constricted in vertical runs as the structure has double rim joists (total 4" thick) under the 2x6 wall framing, leaving only a little more than an inch to pass between floors within the wall cavity.
I think I managed the w/c by going with a wall hung unit mounted on a 2x6 bump-out. It drain to the stack via a Y fitting at about a 45 degree angled run of about 3 feet. I currently have no vent above the entrance into the stack, ok so far?
My bigger challenge is the shower; my intention is to run it into the other branch of the Y (this is a three-pronged Y, the middle is the continuing vent to the roof), my problem is finding a way to vent it. As I mentioned above, I can't pass pipe more than an inch (OD) between floors within the exterior walls. To complicate matters further, the one interior wall of the shower is directly over an engineered I joist, if I cut out enough for a pipe to pass the joist would be essentially useless.
I think this question has been asked about a million times, but here's one more; if the shower trap and line, 2 inch pvc, is in within 5 feet of tying into the stack do I still need a vent upstream from the stack. The project is in Washington state, if that makes a difference cade-wise.
Just to tie up loose ends, that hand sink will tie into the stack about 2 feet above the Y, 1 1/4 inch, it will be the terminal fixture, but I can put a dedicated vent on it as it is above the double rim joist blockage.
Sorry for the wordiness, but I hope I presented things adequately. I have looked at this site a number of time and greatly appreciate the knowledge that is shared.