? Bathroom Demo Back to Back toilets

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  #1  
Old 01-11-21, 08:00 AM
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? Bathroom Demo Back to Back toilets

I am starting a bathroom demo. I have back to back toilets/plumbing in the hallway bath and master bath. At times when flush the toilet in one bathroom air goes into other toilet. Amatuer diy question, but if I take out the toilet in one bathroom for a few weeks, do I have to worry about any water coming into the toilet stack in the bathroom I am remolding or will it just be some air or not affected at all when I flush the other toilet I can live without one toilet during remodel but not both.

Thanks,
Derek
 

Last edited by derek13; 01-11-21 at 08:21 AM.
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Old 01-12-21, 10:30 AM
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Anyone run into this or have input. It would be appreciated.
 
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Old 01-12-21, 11:32 AM
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You should never have water rising up from a drain pipe. If the pipe runs are short, say the toilet ties in immediately across from another toilet the most I'd expect to see is some minor splashing. Still, with a toilet removed you should cover/seal the hole to prevent sewer gasses from escaping.

"At times when flush the toilet in one bathroom air goes into other toilet."
Do you have a clog or any reason to suspect something other than how the piping was run? Here is an article I found about that problem with back to back toilets.
 
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Old 01-12-21, 01:26 PM
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Makes sense. Thanks for your help.
 
 

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