Pronouncedeyen
Member
I have a cast iron waste pipe that has a leak in it. It's behind a wall that we were going to rip out anyway so I took my sledgehammer to it and exposed a 5 ft section of it. It's a mess. It must have been leaking for awhile because it's all rusted on the outside and seems to be leaking in 2 or 3 places.
I decided to run to Home Depot and pick up a 3" PVC pipe and 2 Fernco's to splice in. When I got home I noticed that the iron pipe seemed a bit narrower. I measured it and instead of the outer diameter being 3.5" (as is the case for 3" PVC pipe) it's actually about 3.25" in diameter. Huh? A 2.5" pipe should have an outer diameter of 2.875" and a 3" has an O.D. of 3.5". What kind of pipe has an O.D. of 3.25"?
Has anyone ever seen a cast iron pipe in between a 2.5" and a 3" size? How can I splice in a replacement if it's not a standard size?
I decided to run to Home Depot and pick up a 3" PVC pipe and 2 Fernco's to splice in. When I got home I noticed that the iron pipe seemed a bit narrower. I measured it and instead of the outer diameter being 3.5" (as is the case for 3" PVC pipe) it's actually about 3.25" in diameter. Huh? A 2.5" pipe should have an outer diameter of 2.875" and a 3" has an O.D. of 3.5". What kind of pipe has an O.D. of 3.25"?
Has anyone ever seen a cast iron pipe in between a 2.5" and a 3" size? How can I splice in a replacement if it's not a standard size?