DVMSteve
New Member
Hi, folks. I posted this on the 'remodel forum' by mistake three days ago, and didn't get a reply, so I'm putting it up here. Sorry if that is not OK.
I'm looking to finish off some rooms in the basement, including a full bath. I will have to tie in to the 4" PVC building drain, which is overhead, suspended from the 2x10 joists, and goes out to the septic tank (which is higher than the basement floor). I only have one interior 2x4 wall above this basement area to use to get a 2" vent pipe up through to the roof. (The rest of the walls are logs.) The roof above this wall is 2/12, with no attic space. This is in the rear of the house, and the roof here is continuous with that which covers the wrap-around porch.
So....
1) Solving the vent problem: Will this be OK? Three fixtures (tub/shower, toilet, and sink) with vents tied together, and then joining the ejector pit vent before going up inside this interior wall to the roof. There seems to be some controversy among you experts on this issue. One suggested that the traps might be siphoned by the fast flow from the pump. Another said "No problem, that's the only way I've ever done it." So I'm not sure about that. It will be difficult to line up all the holes to get the vent pipe up. I can't see any other way besides removing the sheet rock floor to ceiling, between two studs, on the inside of the closet above. If I had to, I suppose I could cut a big hole in the roof to get working room, and join two 2" vent pipes together in that narrow angle and come out of the roof with one 3" vent. Any tricks or any other way to run those vent pipes?
2) Concrete excavation: The bathroom will be 13' by anywhere from 6 to 10', and the 13' wall is where the fixtures will be located. But I can arrange them just about any way, as long as I avoid the 2x2' footers for two posts that will be inside this wall. This wall will be either 7 or 13' inside the foundation wall, so I have room behind it. I do have to plumb around the HVAC system in this area. How would you folks suggest to arrange the fixtures and cleanout to maximize DWV ease and efficiency?
Thank you,
Steve
I'm looking to finish off some rooms in the basement, including a full bath. I will have to tie in to the 4" PVC building drain, which is overhead, suspended from the 2x10 joists, and goes out to the septic tank (which is higher than the basement floor). I only have one interior 2x4 wall above this basement area to use to get a 2" vent pipe up through to the roof. (The rest of the walls are logs.) The roof above this wall is 2/12, with no attic space. This is in the rear of the house, and the roof here is continuous with that which covers the wrap-around porch.
So....
1) Solving the vent problem: Will this be OK? Three fixtures (tub/shower, toilet, and sink) with vents tied together, and then joining the ejector pit vent before going up inside this interior wall to the roof. There seems to be some controversy among you experts on this issue. One suggested that the traps might be siphoned by the fast flow from the pump. Another said "No problem, that's the only way I've ever done it." So I'm not sure about that. It will be difficult to line up all the holes to get the vent pipe up. I can't see any other way besides removing the sheet rock floor to ceiling, between two studs, on the inside of the closet above. If I had to, I suppose I could cut a big hole in the roof to get working room, and join two 2" vent pipes together in that narrow angle and come out of the roof with one 3" vent. Any tricks or any other way to run those vent pipes?
2) Concrete excavation: The bathroom will be 13' by anywhere from 6 to 10', and the 13' wall is where the fixtures will be located. But I can arrange them just about any way, as long as I avoid the 2x2' footers for two posts that will be inside this wall. This wall will be either 7 or 13' inside the foundation wall, so I have room behind it. I do have to plumb around the HVAC system in this area. How would you folks suggest to arrange the fixtures and cleanout to maximize DWV ease and efficiency?
Thank you,
Steve
