DWV plan for Basement Remodel

[Ben Ferreira]

I'm in the early stages of remodeling my 400 sq ft unfinished basement and I'm looking for some help laying out the sewer lines. I thought I had a pretty good understanding of the applicable codes, so I went ahead and trenched out the slab, but now I'm starting to second guess myself (mostly the wet vents and clean-outs).
It also seems like a should add a tee near the sewer in case the inspector requests a water test...still waiting to hear back from them.

Thank you and I'm so happy to have stumbled across this incredible resource!

 

[Terry]

I would pull the shower off the lav line which is 2" all the way to the vent since it's also venting the toilet.

 

[Sponsor]

 

[Ben Ferreira]

Thank you Terry. Something along the lines of this?

 

[Terry]

Bathroom fixtures can wet vent.
I was thinking of the bathroom sink ( Lav )

 

[Ben Ferreira]

The floor drain can wet vent as well, right? I think I'm understanding it.

 

[James Henry]

Will this work?

 

[Ben Ferreira]

I've already cut and jackhammered the slab or else that would be great. I laid out the fittings and I don't have as much room to work with as I imagined. I can add a dry vent after the toilet like pictured. Are there any code issues with this layout?

Does anyone know if the floor drain will need a trap primer or can I get away with a waterless trap seal (in Whatcom county). Thanks!

 

[Plumber69]

Do this

 

[Plumber69]

Do this

Id trap prime the floor drain with the bar sink

 

[Plumber69]

I've already cut and jackhammered the slab or else that would be great. I laid out the fittings and I don't have as much room to work with as I imagined. I can add a dry vent after the toilet like pictured. Are there any code issues with this layout?

Does anyone know if the floor drain will need a trap primer or can I get away with a waterless trap seal (in Whatcom county). Thanks!

Will this work?

No

 

[Ben Ferreira]

Id trap prime the floor drain with the bar sink

Can i bury the supply line in concrete?

Do this

That looks much better than what I have planned. I'm just not sure if I have enough room for it.

 

[Plumber69]

Can i bury the supply line in concrete?



That looks much better than what I have planned. I'm just not sure if I have enough room for it.

 

[James Henry]

No

The toilet does not have to be the last fixture anymore. The toilet Will run past the lav vent first and not siphon the shower trap. But that's just my code.

 

[Ben Ferreira]

Is there an issue having the floor drain (in a furnace closet) being wet vented with the mini bar sink since they are outside of "bathroom groups"?

 

[hj]

Any issues? Just that the shower and floor drain are not vented and the toilet flows past them, (flowing past the lav vent has NOTHING to do with it), and that "vent" in the middle serves absolutely NO PURPOSE.

 

[James Henry]

The floor drain doesn't need a vent. It can be a "combination waste and vent". If that helps.

 

[Michael Young]

In your drawing, your toilets kills your wet vent

try this instead

 

[Ben Ferreira]

Thanks for the last couple suggestions. After hj's post, I decided to look elsewhere for guidance and passed my rough in last week.

Thanks for the help!