Provide a diagram of what you are proposing to do. Wet vented fixtures (toilet, bathtub, shower, or floor drain) are permitted for bathrooms on the same floor level, not between floors.Can the washing machine drain line be wet vented to the utility sink vent?
I'm not following your comment. Any p trap needs a vent- whether its a common vent, wet vent, combination wet vent, etc. depends on the application.
I had the inspector out last week looking at the mechanical on my basement build out. I had him specifically look at the stand pipe and he told me that the standpipe did not need to be vented to above the sink drain as it is in the picture in the post up above. Don't remember his explanation.
But there is nothing incorrect about the revent of the standpipe as shown in green in the photo. Also depends on the length of the branch drain...shown in red in the photo.I had the inspector out last week.....the standpipe did not need to be vented to above the sink drain as it is in the picture. Don't remember his explanation.
Is this IPC code... Here in Wisconsin it's a little different I guess (2" above flood level rim) but we're slowly starting to conform and probably going to adapt the IPC...905.5 Height above fixtures. A connection between a vent pipe and a vent stack or stack vent shall be made at least 6 inches (152 mm) above the flood level rim of the highest fixture served by the vent. Horizontal vent pipes forming branch vents, relief vents or loop vents shall be at least 6 inches (152 mm) above the flood level rim of the highest fixture served.
So to answer your question the individual vent on the washer standpipe would be to low because it ties in below the flood level rim of the fixture served.
There is no such thing as a revent line.