We are remodeling our jack and Jill bathroom and during demo found that I have two 2" vent pipes for the same bathroom. One is coming out of the concrete slab then 45 ing into the wall behind the vanity and going out the roof and I really need to know if I can cut this one off and cap it so that I can tile over it. The other vent pipe is just 2 feet to left and also goes out the roof. Seems like overkill to have two 2" vent pipes for the same bathroom according to everything I've been reading. I have pics to show as well.
Can I remove this vent pipe?
- Thread starter BlakeDIY
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Stuff
Well-Known Member
The vent on the right is most likely for the tub and possibly toilet. No easy way to remove it so plan on building a half wall around it.
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Well it was already in a half wall and we tore it out. I will either cut it out and cap it so I can just tile over the capped pipe. Or I can worst case scenario get a concrete saw and get under the slab and re-route the pipe to come up through the studs and then out the roof. building another half wall in there is really not an option. (To my wonderful wife)
The 2" is for the toilet. Maybe the tub too.
Looks like you will be cutting the slab and rerouting.
Looks like you will be cutting the slab and rerouting.
Stuff
Well-Known Member
If you just cap it you loose the vent's function. Without that flushing the toilet can suck the bathtub trap dry. Then your nice new bathroom will smell like a septic tank.Well it was already in a half wall and we tore it out. I will either cut it out and cap it so I can just tile over the capped pipe. Or I can worst case scenario get a concrete saw and get under the slab and re-route the pipe to come up through the studs and then out the roof. building another half wall in there is really not an option. (To my wonderful wife)
I'm not super familiar with plumbing other than what I've been reading recently. So the smell would still happen even though I still would have the other vent pipe in the same bathroom? I was reading where some homes only have one 4" vent pipe for the whole house and I have two 2" vents for each of my three bathrooms with a total of 9 vents in my house. Seems like the other vent pipe to the left should still be able to get air to the toilet and tub since it is so close.
A lot depends on how the pipes are configured. A plumber at one time thought that you needed that vent, and the inspector looked at the job too.
What a neighbor says he did may not apply in your situation. Vents prevent traps from siphoning. We have no idea what lays below the concrete.
I have been in home with dry traps, and it's a horrible smell. You might mention that. A horrible sewer gas smell, with health implications.
What a neighbor says he did may not apply in your situation. Vents prevent traps from siphoning. We have no idea what lays below the concrete.
I have been in home with dry traps, and it's a horrible smell. You might mention that. A horrible sewer gas smell, with health implications.
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