Wet venting a shower

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GoHawks

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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.

20210715_163016.jpg
 

Jeff H Young

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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

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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

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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
 
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