Venting

[JeffreyO]

I would appreciate some info on whether or not I am venting this properly. I took a picture and have drawn lines to where they would run. The plan is to tie in the sink to the 3" vent and make a penetration through the roof after reducing down to 2".

 

[Terry]

The shower could vent the toilet if it had a vent.
Right now the shower is not vented.
The lav could wet vent the toilet and the shower, but not how it's shown now. The shower can have a five foot trap arm, and the lav 42".
Somewhere in the middle there, you could have used the lav to wet vent the shower and armed over to both the lav and the shower.

 

[Sponsor]

 

[hj]

The shower is not vented, and your "vent" is useless with no valid purpose.

 

[JeffreyO]

The shower could vent the toilet if it had a vent.
Right now the shower is not vented.
The lav could wet vent the toilet and the shower, but not how it's shown now. The shower can have a five foot trap arm, and the lav 42".
Somewhere in the middle there, you could have used the lav to wet vent the shower and armed over to both the lav and the shower.

The shower could vent the toilet if it had a vent.
Right now the shower is not vented.
The lav could wet vent the toilet and the shower, but not how it's shown now. The shower can have a five foot trap arm, and the lav 42".
Somewhere in the middle there, you could have used the lav to wet vent the shower and armed over to both the lav and the shower.

I think I got it. I appreciate ya!

 

[JeffreyO]

The shower is not vented, and your "vent" is useless with no valid purpose.

So does the vent line go on the top side of the P trap of the shower? (I'm an electrician, so be gentle)

 

[Cacher_Chick]

So does the vent line go on the top side of the P trap of the shower? (I'm an electrician, so be gentle)

The vent take-off must come off the shower's trap arm vertically, using a wye and 45 or a combo fitting.

 

[JeffreyO]

The shower could vent the toilet if it had a vent.
Right now the shower is not vented.
The lav could wet vent the toilet and the shower, but not how it's shown now. The shower can have a five foot trap arm, and the lav 42".
Somewhere in the middle there, you could have used the lav to wet vent the shower and armed over to both the lav and the shower.

Here's what we got now. The shower is now vented and should vent the toilet as well. I plan on tying in the sink in through the wall. Now that I look at it, is the 3" necessary? I planned to use the 3" as the stack to penetrate through the roof after reducing down to2"

 

[Cacher_Chick]

If the lav drain and vent is 2" all the way through the roof, it can vent the entire bath group.