Basement bathroom DWV layout w/ wet vent

[zolotiyeruki]

Hi All,

We're drawing up plans for finishing our basement, and I'm currently working on the layout of the DWV piping. I've done a lot of reading, and I *think* have something that'll work, but I'm no plumber, so there may be something I've missed. I've attached two mockups, one showing a view from above, one showing a view from underneath.

It's a 3/4 bath which will drain into an ejector pit. There's also a utility sink in an adjoining room. My thinking is to use the drain from the utility sink as a wet vent for the shower, and the sink's drain as a wet vent for the toilet. The vents will tie in overhead (not shown in the pictures).

I have a couple questions I could use some clarification on:
1) Are there any problems with how I've planned out the sink drain/wet vent for the toilet? It's about a 36" horizontal run from the sink to the vent.
2) Is it ok to use the utility sink's drain as a wet vent for the shower? Where they tie in, does that Y need to be rolled up by 45 degrees?

 

[Terry]

Plumbing code doesn't allow for a utility sink to wet vent anything.
They do allow wet venting for bathroom fixtures on the same floor.

 

[Sponsor]

 

[zolotiyeruki]

I'm glad I asked then! In that case, if the shower has its own vent, and the utility sink's drain is tying into the shower's drain, that tie-in has to happen downstream of the shower's vent, correct (see illustration)?

 

[Terry]

I'm glad I asked then! In that case, if the shower has its own vent, and the utility sink's drain is tying into the shower's drain, that tie-in has to happen downstream of the shower's vent, correct (see illustration)?

This works now.

 

[zolotiyeruki]

Awesome, thanks!