Rough in Adapters and Code compliance

Hi all,

I have a quick and easy question. Does anyone know if the installation of a rough in adapter while completely remodelling a bathroom is a code violation?

Thank you for your time.

Best regards,

Schumi.

What is a rough-in adapter?

Rough in Adapters and code compliance reply to Jimbo

Hi Jimbo,

A rough in adapter, (probably the wrong name technically), is an adapter that fits under the toilet and between the toilet outlet and the floor mounted flange. The Adapter allows a 12 in Rough In, (RI), toilet to sit on a 14 inch RI flange and still allow the toilet to be in the correct position in relation to the wall that the tank backs on to.

Standard RI's are 10, 12 and 14 inches, (the distance from the plasterboard behind the toilet to the center of the sewage outlet pipe mounted in the floor of your bathroom). We have a RI of around 17 inches, (Go figure!). We also have aluminum wiring and not a wall that is true within the house. So I would like to pull the wall in by one stud depth and then use a rough in adapter to move a 12 inch RI toilet back to the wall on a 14 in RI flange. Hope this makes sense.

My question is does an adapter violate building plumbing codes?

Thanks

Schumi7

adapter

I still cannot envision what it could look like and still fit within the depth of a floor joist. But from the description, I seriously doubt that it would meet any plumbing code, except one that has few prohibitions.

What about an offset closet flange?
This one has 1 1/2" offset...

Why not just re-plumb the waste piping? Sounds like you're demoing enough that one more excavation won't hurt...

Are you talking about the Toto Unifit Adapters? Nothing wrong with them. That's what they are for.

Unifit adapter that allows differnent rough-in

Thanks to all those who replied. We live in Houston, so no basements and no joists, just a concrete pad. This means digging up the pipe and repositioning it is a reasonably involved job and another addition to the charges already incurred for resetting the bath outlet pipe.
To be honest I think we are simply going to put a 12 inch on the flange and bring the wall out behind the toilet to form a shelf. This should allow for the screwed up rough in, create a feature, (maybe I am allowing for poetic license here), and still give some artificial semblance of space by not running the wall from floor to ceiling. 4 or 5 studs a shelf and plasterboard has got to be easier than breaking the concrete, moving the floor flange and then refilling with concrete.
Jimbo, you were on the money with the Toto Unifit description. The reason for my reticence was that the plumber completely blanked me when I suggested an offset flange or Unifit adapter. The arguement ended when my wife decided to match the toilet style with the sink. Smart girl.
Thanks for all your help.
Best regards,
Schumi7

That might be a good place to build in a secret compartment to stash all your bullion.