I am adding a bath in my gameroom and need some help with the sewer line/ vent setup. This room had a toilet at its current location with a 1 1/2 in vent come up the wall on the right side of toilet. I would like to add the tub and the 2 sinks. I have the slab busted and the 4 in line exposed it is about 15 to 18 inches from the back 8ft wall. Can somebody help me with how I need to run the vents? Thanks for any help. Michael
help running sewer line
- Thread starter Hornnumb2
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SacCity
In the Trades
Is this a single floor or is there another floor above it?
Assuming that there is an attic space above it,
I would run a vent up between the bathtub and the lav. 1-1/2" tie the vent from the lave into this at about 42" high or so six inches above the water level in the sink but low enough to provide clearance for the medicen cabinet,
Run a three inch vent for the toilet up behind the toilet, I would also put clean out here behind the toilet. If you need to clean the line this takes two bends out of the way that need to be snaked. The second lav on a vent going up to the attic.
Once in the attic then tie all the vents together into a common 3" vent and then exit the roof.
Michael
Assuming that there is an attic space above it,
I would run a vent up between the bathtub and the lav. 1-1/2" tie the vent from the lave into this at about 42" high or so six inches above the water level in the sink but low enough to provide clearance for the medicen cabinet,
Run a three inch vent for the toilet up behind the toilet, I would also put clean out here behind the toilet. If you need to clean the line this takes two bends out of the way that need to be snaked. The second lav on a vent going up to the attic.
Once in the attic then tie all the vents together into a common 3" vent and then exit the roof.
Michael
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SacCity
In the Trades
Easy way for the main vent is to use a sanitary tee in line with the wall, and a short horizontal run to the toilet flange, center of the toilet flange should be 12 inches from the finished wall surface. As long as the vent for the toilet is within 5 feet of the closet (toilet) flange you are fine,.
Yes you are better off to tie all the vents together in a three inch line before going through the roof.
One hole in the roof to leak rather than a bunch of small ones.
Michael
Sac City Plumbing
Yes you are better off to tie all the vents together in a three inch line before going through the roof.
One hole in the roof to leak rather than a bunch of small ones.
Michael
Sac City Plumbing
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