This is what happens when you decide to make the extra effort and paint a closet. you find things...
Our 2nd-floor tub drains into 2" galvanized (I think) pipe, which connects to a 4" cast iron stack. Where they were once threaded together has completely corroded away...due to electrolysis I was told. So far, I have opened up the wall and, with limited access, cut out part of the 2" galvinized pipe. The plan is to remove the section of 2" pipe back to its next threaded end (accessible) and then replace from the remaining 2" pipe (horizontal) to the cast-iron stack (vertical) with PVC.
Questions:
- I cannot back off the remaining 2" pipe out of the female end it is in. These are old pipes, obviously...Any advice on how to get these apart? I have tried heat and muscling it with a 14" pipe wrench? Or is it better to not break the bond and tie the PVC into the existing pipe with some kind of no-hub coupling?
- The female receptor (for lack of a better word) on the cast-iron stack looks pretty messy, and I'm not confident that the PVC with tread in all that well, if at all. Has electroylsis eaten the iron too? Can I still work with this and somehow complete the bond between the 2 materials with an epoxy or something (a JB Weld type of thing)?
Thanks for any info/advice,
-Mike
Our 2nd-floor tub drains into 2" galvanized (I think) pipe, which connects to a 4" cast iron stack. Where they were once threaded together has completely corroded away...due to electrolysis I was told. So far, I have opened up the wall and, with limited access, cut out part of the 2" galvinized pipe. The plan is to remove the section of 2" pipe back to its next threaded end (accessible) and then replace from the remaining 2" pipe (horizontal) to the cast-iron stack (vertical) with PVC.
Questions:
- I cannot back off the remaining 2" pipe out of the female end it is in. These are old pipes, obviously...Any advice on how to get these apart? I have tried heat and muscling it with a 14" pipe wrench? Or is it better to not break the bond and tie the PVC into the existing pipe with some kind of no-hub coupling?
- The female receptor (for lack of a better word) on the cast-iron stack looks pretty messy, and I'm not confident that the PVC with tread in all that well, if at all. Has electroylsis eaten the iron too? Can I still work with this and somehow complete the bond between the 2 materials with an epoxy or something (a JB Weld type of thing)?
Thanks for any info/advice,
-Mike