I have to move my toilet over an inch from the wall per inspector's request. I have searched the internet and have not found an ABS offset closet flange that would work for me. I did however find a cast iron flange that measures 4" x 2" (Jones Stephens Corp., Model # C44-420). Is it at all possible to connect cast iron to ABS without any leaks? Thanks

letmetellu

There might be a way to use enough black roofing cement to keep it from leaking but you would have to secure the flange to the concrete floor with some TopCon screws or something like that.
I don't think much of the idea of using cast iron on plastic. Also it might be possible to use some lead wool to caulk the joint using the cast iron flange to the ABS.
Just what is his reason for wanting you to move the flange.?

stew_1962

elcastle

The toilet is to close to the wall so the inspector dinged me on it. The only reason the wall is so close is because it was moved in that direction to fit a dual sink vanity that the wife wanted. I am on my final inspection and this is the only thing that is holding me up. I really don't need to use the cast iron flange but it's the only one with the correct height that I need. All the others (ABS or PVC) that I have found would raise my toilet of the ground. I need an offset flange that would fit a 4" ABS pipe with a 2" height. Any plumbing suppliers out there that anyone knows of? Thanks

speedball1

While it's possible to install a cast iron llange on a ABS raiser it's a hassle you don't have to go through. Search no more. Click on; Toilet Flanges from the most FAMOUS Internet PLUMBING SUPPLY
to find a ABS offset closet flange,(see image). This flange will offset 1 1/2" and fit inside a 4" closet raiser or outside a 3" one. Good luck, Tom

elcastle

"Speedball 1" I found the offset closet flange you have pictured at Home Depot. The problem that I ran into is that the 4" street elbow that is at the end of the sewage line has a spigot end (see image) instead of a hub end so the offest closet flange doesn't fit. I didn't want to break up the concrete to replace the elbow in order to have one that ends with a hub end but if there isn't any other option than I will. Thanks

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speedball1

You have not put up a image of a street 90. You have posted a 4" quarter bend,( fitting with two hubs). This is what a street 90 looks like,(see image).
The offset flange I put up will fit inside a 4" pipe, (like the male end of a street 90) or it will go over a 3" pipe. So where's your problem? Regards, Tom

elcastle

I've broken up the concrete around the elbow and have found that the elbow ends at ground level. The actual sewer line sits only about 4" below ground level so I think there isn't an elbow that I could use instead of what is there now. If I were to use the offset closet flange pictured, it would sit about 2 1/2"- 3" above ground level. In the picture I did not insert it all the way for fear of not being able to remove it because it's very tight. If I could use the offset cast iron closet flange on the right it would keep the toilet at ground level. Help! I've run into a brick wall.

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speedball1

You're attempting to install the flange in a hub fitting. That's not gonna work.
ALL flanges HAVE to be mounted on a bald raiser, If you havent the room to install a raiser out of the 90 then you'll have to replace it with a street like the one I've pictured earlier. The offset flange I put up will fit inside a 4" pipe, (like the male end of a street 90) or it will go over a 3" pipe but you'll need room to do it. Would it be possible to install a short raiser out of the quarter bend to mount a flange on? NO? Then you'll hafta cut the quarter bend out and replace it with a street 90. The good news is if you replace the quarter bend you can move it out farther from the wall so you won't need a offset flange. A regular ABS flange will do. Good luck. Tom

elcastle

Tom I've attached a picture to show that I need to move away from the wall on the right. The remainder of the original closet flange is still glued onto the elbow. It was a closet flange that fit over the outside of the 4" elbow end. I removed the blue adjustable ring that was part of it. With only 4" of depth from the straight sewer line to ground level, do you think I have enough depth to use a different type of elbow? The reason I ask is because I was measuring all the elbows at Home Depot and if I would connect any of them to the sewage line and then attach the ABS offset closet flange they would all be above ground level. I'm still concerned that the neck on the offset closet flange will make it to high to sit flush with the ground. Am I just not getting it???

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