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 Back to back toilet
Author: marutlc (IL)

Hello

I have 4" main vent and relocating a toilet about 5 feet from the vent. I am also building a new bathroom. As a result I will have back toilets connected to the main vent.

What best way rough in back to back to toilets. Do I need provide vent for each toilet and run back main vent.

Thanks

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 Re: Back to back toilet
Author: North Carolina Plumber (NC)

I'd say the best way is to use a back to back fixture fitting with the vent coming off the top of the vertical fitting. With the vent 5' away you'll probably need to pull another vent on the new toilet.

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