Came across this vent for the shower when I demo’d the floor and part of the wall. Old house, second floor. There used to be some type of fixture in this corner, but the shower I demo’d is not original.
It is a air gap vent tee’d off the lead drain line. The part that bothers me is that the shower curb used to be about 16″ high, and the vent is about 4″ high, so I think the vent was way too low. The new curb will only be a few inches high, but I think the vent still needs to be raised.
As a minor point, it also appears that the vent is sloped the wrong way.
Whenever you are asked if you can do a job, tell’em “Certainly, I can!” Then get busy and find out how to do it. T. Roosevelt
Replies
vent needs to gp out roof. that vent properly work o.k. I would like a little more height.
Maybe I'm off-base here (and I'm sure someone will correct me if I'm wrong) but I didn't think those were suppose to be buried in the wall, no? (must be accessible and the space must be ventilated.)
Actually the space is ventilated. That's an outside wall, and you can't see in the pic, but if you get at the right angle you can see daylight at every lap joint :)
Whenever you are asked if you can do a job, tell'em "Certainly, I can!" Then get busy and find out how to do it. T. Roosevelt
I'm pretty sure you are correct about accesible (like an access panel on the other side or something) but it only needs to allow air in, if it is the type I'm thinking of. The system as a whole still has to have a vent through the roof somewhere, and I suspect there are rules about that too.
BTW, I'd replace the lead while you have a chance. It's prone to thinning as it gets older, which will create pin-hole leaks. Swapped out some lead this past summer that was paper thin and causing extensive damage between floors (water migrated into areas nowhere close to the bathroom above, confusing everone.)
Just my .02.
I'm with Nick and Brownie. This is the time to replace as much as possible...like all the way to the roof and basement. It's a whole lot easier to do it now rather than a few weeks or months from now when problems arise and you have a lovely new shower and tile floor in the way.
Al Mollitor, Sharon MA
PS: I don't think a vent is supposed to have any horizontal run below the flood line of the fixture.
Al
No good having an air admittance valve buried in insulation in a wall.
Technically can be mounted below flood level, though may not be allowed by code.
Best to run through roof while you have it open, if possible
If for some reason taking the vent through the roof wasn't feasible, wouldn't an alternative be to take it as high as possible then take it out the wall??Rich BeckmanAnother day, another tool.