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 Toilet flange question
Author: Matt price (WA)

Hello,

Thanks to anyone who's able to help! We're just finishing up a Reno and the downstairs powder room having trouble with the toilet.

I had to replace the old cast iron flange. This is what I have.

The problem is the cement is 4 1/4" wide (the flange is only 4").

The cement is also 6" deep to the pipe, and the flange is only 4" long, meaning it won't go all the way down by 2".

How do I get around this? I've asked the plumbing store and buddy was not helpful again lol big surprise.

Can I get a 4" pvc pipe attach to he flange and run that into the cement so it goes ( if that makes any sense)

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 Re: Toilet flange question
Author: North Carolina Plumber (NC)

The depth of the cement shouldn't have any affect on installing the flange. As long as the top of the pipe is within an inch or so of the finished floor it just needs to be packed and leaded. Or you can get a PVC flange that goes inside the 4 Cast Iron and expands to make a watertight seal.

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 Re: Toilet flange question
Author: hj (AZ)

sorry, it doesn't make any sense. What does the concrete have to do with the pipe or flange?

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 Re: Toilet flange question
Author: bernabeu (SC)

you call a licensed, bonded, insured plumber

= = = = = = = = = = = = = = = = = = = = = = = = = = =

Retired U.A. Local 1 & 638 ~ Measure Twice & Cut Once

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 Re: Toilet flange question
Author: sum (FL)

Not sure. I read it a few times and my interpretation is...

"cement is 4-1/4" wide" means he has a concrete slab and the existing hole in the slab is 4-1/4" in diameter larger than his flange?

"cement is 6" deep and flange won't reach" means when he removed the old flange somehow the pipe the flange is attached to came off instead. How he has a pipe or a hubbed CI fitting sitting 6" below the finished surface and his normal flange is not long enough to reach.

OP best is to post a picture showing clearly what you have so the pros can advise accordingly. If you need to joint to an existing cast iron pipe or fitting it could get involved.

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