Wet venting a shower

[GoHawks]

I am adding a bathroom to my upstairs and want to make sure my venting is correct. I will be tying my sinks, toilet, and shower together. My shower venting is a little weird and want to make sure it works. The shower is in the middle of the room and because of that I need to run about 4 feet horizontally before being able to go vertical. It seems as though you need to wet vent it to do that and a dry vent will not work. Because of that I was planning on tying my sink drainage to the shower wet vent which eventually ties in with the toilet drainage. Will this work or do I have a better option? I included a crude sketch of what I am talking about. Thanks for your help.

 

[Terry]

The double lav needs 2" pipe for the wet portion of the drains.
Also, to wet vent the shower the wet portion needs to be 2".

 

[Sponsor]

 

[Reach4]

This may be sufficient.

 

[GoHawks]

Thanks guys, just wanted to make sure.

 

[Jeff H Young]

Wait a minute 2 inch dry vent serving water closet probebly almost surely not meeting code and likly can be eliminated but cant be left alone. technicaly

 

[wwhitney]

How's that? Reach4's diagram looks like a compliant UPC wet vent to me. The WC has a 2" vent. The 2" segment from shower to the 3" WC fixture drain is carrying 4 DFUs, which is the maximum for a 2" horizontal wet vent, but is allowed.

Cheers, Wayne

 

[Jeff H Young]

How's that? Reach4's diagram looks like a compliant UPC wet vent to me. The WC has a 2" vent. The 2" segment from shower to the 3" WC fixture drain is carrying 4 DFUs, which is the maximum for a 2" horizontal wet vent, but is allowed.

Cheers, Wayne

I was refering to go hawks sketch. reach 4 nailed it! i didnt notice he had eliminated the illegal flat vent on W/C thanks wayne no one mentioned the other vent just details on the wet vent