I'm building a bathroom wall and need to install a new PVC double
san-T (2") in the vent stack before installing the wall studs. What
do plumbers use to temporarily close off the open pipes for a day or
two? I heard a wet rag will work to slow sewer gases, but I may need
something better yet not permanent. TIA
On a new clean fitting and ring, we always just used a couple layers of
duct tape. This wasn't just for the smell, it was to keep debris from
falling down there. It's not a pressurized system, so you don't need
much of a seal. It should work on an open T in the wall as well, since
liquids won't be hitting it even if there is another drain upstairs.
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