I am doing some remodel plumbing and will be significantly rearranging the location of the main stack. (See last paragraph for a more detailed description).
I want to cut off the old main stack (4") and use this spot as a location to plumb in a new smaller drain (2"). The way the old stack and other plumbing come together at the building drain has all the old fittings glued together either with street fittings or short stubs of pipe so that the hubs are all but touching each other.
I was thinking I could cut off the 4" street 1/4 bend at the hub of the 4" fitting and then glue in a reducing bushing that would allow me to glue the 2" pipe inside the 4" pipe. Is there such a bushing? If not how can I accomplish this transition?
The new plan will also leave me with an unused 2" port in the old plumbing. (I know you're thinking why not use that for the new 2" drain. I wish I could, read on.) This port has a street elbow in it that was poorly assembled and cracked at the hub end. I would have used this to attach my new 2" drain, but it won't pass an inspection. I would like to cut off the street end of the el at the hub of the fitting it goes into and then glue a cleanout fitting or cap on it. Again I need a bushing that will let me glue a smaller pipe (say a 1.5") inside the 2" so I can attach the cap or cleanout. Does this bushing exist? If not how can I do it.
There is one other possibility that would make this all go away. The top fitting in the stack is a 4x4x2x2 reducing double wye. The old 4" stack goes into the top from a horizontal run via a street 90 and two drains go into the wyes (one the cracked drain in question and the other a sewage ejector pump that will remain). The vertical wye is connected to a wye on its back that goes right through the foundation wall (drain is above the basement floor about 3') to the building sewer. (I am going horizontally to the new stack via the horizontal cleanout on the inside end of the wye.) This connection is made via a pipe stub that leaves about 1/2" visible. I could cut off the vertical double wye fitting and glue fittings for the new 2" drain and a replacement for the existing 2" ejector pump drain. However I don't think 1/2" is anywhere near enough for attaching another fitting.
Hope that all makes sense. Please help.
Thanks,
Joel
I want to cut off the old main stack (4") and use this spot as a location to plumb in a new smaller drain (2"). The way the old stack and other plumbing come together at the building drain has all the old fittings glued together either with street fittings or short stubs of pipe so that the hubs are all but touching each other.
I was thinking I could cut off the 4" street 1/4 bend at the hub of the 4" fitting and then glue in a reducing bushing that would allow me to glue the 2" pipe inside the 4" pipe. Is there such a bushing? If not how can I accomplish this transition?
The new plan will also leave me with an unused 2" port in the old plumbing. (I know you're thinking why not use that for the new 2" drain. I wish I could, read on.) This port has a street elbow in it that was poorly assembled and cracked at the hub end. I would have used this to attach my new 2" drain, but it won't pass an inspection. I would like to cut off the street end of the el at the hub of the fitting it goes into and then glue a cleanout fitting or cap on it. Again I need a bushing that will let me glue a smaller pipe (say a 1.5") inside the 2" so I can attach the cap or cleanout. Does this bushing exist? If not how can I do it.
There is one other possibility that would make this all go away. The top fitting in the stack is a 4x4x2x2 reducing double wye. The old 4" stack goes into the top from a horizontal run via a street 90 and two drains go into the wyes (one the cracked drain in question and the other a sewage ejector pump that will remain). The vertical wye is connected to a wye on its back that goes right through the foundation wall (drain is above the basement floor about 3') to the building sewer. (I am going horizontally to the new stack via the horizontal cleanout on the inside end of the wye.) This connection is made via a pipe stub that leaves about 1/2" visible. I could cut off the vertical double wye fitting and glue fittings for the new 2" drain and a replacement for the existing 2" ejector pump drain. However I don't think 1/2" is anywhere near enough for attaching another fitting.
Hope that all makes sense. Please help.
Thanks,
Joel