Tub to shower conversion (picture included)

[Mmullis90]

We are doing a tub to shower conversion and wanted to see if the vent setup is sufficient for a shower only drain or if we need to run a new vent for the shower (we would connect to existing vent in the attic). We already know we will have to run 2”pipe for the drain and we are comfortable with glueing pipes, just want to make sure we do this correctly before we close the walls up. Thanks for any input!!

 

[Terry]

If your "vent" is a lav venting the bathroom, that works. and changing the tub to shower just means connecting up with the new drain.
Thy also make 60" long shower pans with the drains on the ends which make for an easy conversion.

 

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[Mmullis90]

Thanks for the reply. I’m not sure what you mean by “lav venting the bathroom”... sorry I am a complete novice when it comes to some of this stuff. It is a 2 or 3 inch pipe that is in the wall behind the toilet that goes to the roof. Thanks again.

 

[Terry]

Well normally we don't have a vent that is flat below the flood level of the fixtures unless it's one that can be snaked easily. A bathroom sink allows for that.
That's what you have for a vent though.

 

[Mmullis90]

Well normally we don't have a vent that is flat below the flood level of the fixtures unless it's one that can be snaked easily. A bathroom sink allows for that.
That's what you have for a vent though.

Should we rework this system and add appropriate vents above the flood level? This house was built in the early 90s but I didn’t think codes would have changed that much since then. How would this have passed inspection being done incorrectly like that?

 

[Mmullis90]

Should we rework this system and add appropriate vents above the flood level? This house was built in the early 90s but I didn’t think codes would have changed that much since then. How would this have passed inspection being done incorrectly like that?

Also there’s the same setup in the wall behind the sink as well. And they join up in the ceiling

 

[Terry]

They allowed that in the 90's, and they did install a cleanout on the horizontal for that. When I give advice, I try to give current code advice in case someone is getting a permit and having it inspected. It's better for everyone that way.

 

[Mmullis90]

They allowed that in the 90's, and they did install a cleanout on the horizontal for that. When I give advice, I try to give current code advice in case someone is getting a permit and having it inspected. It's better for everyone that way.

Ahhh makes sense. Thanks for the info.