What is the best way to cap off a toilet flange in the floor? The current bathroom is to become a walk in closet and the bath fixtures will be removed.

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Originally Posted by iflyj3

What is the best way to cap off a toilet flange in the floor? The current bathroom is to become a walk in closet and the bath fixtures will be removed.

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That will depend on the material of the floor. Are we talking cement slab or some other material? Let me know, Tom

Floor is plywood. I don't care to remove the drain, just want to plug it to keep methane out. Carpet will go over the floor, so a little bump is not a problem as it will be under the shelving.

First remove the flange and stuff rags down in the closet bend to seal it off leaving 3 or 4 inches open. You may now fill the hole with cement to the floor level. Allow a few days to cure and cover it with carpet. Good luck, Tom

Thanks very much.

Cut the flange at floor level and use a Fernco PVC pipe cap. Lay a thin luan ply over it and carpet. The next person might want a toilet there!

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Originally Posted by ma0641

Cut the flange at floor level and use a Fernco PVC pipe cap. Lay a thin luan ply over it and carpet. The next person might want a toilet there!

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Thanks, but the pipe is cast iron and not PVC. Is there a different plug that would work?

That does change things. Is the, flange leaded over the cast iron hub. Is there a hub or just a stub with a flange. If it is just a stub, get a test plug that will fit the stub and tighten it. You may have to cut the carpet to fit around the plug but if it's under a shelf and you don't mind it's easiest way to plug it. If you are sure you will never use the pipe then fill it with concrete like Tom said.

I would suggest to follow speedball1(Tom) instruction and you will be Ok, Thanks.

John

The toilet flange is leaded to the waste pipe.