Basement Plumbing

Long time lurker - first time poster.

I'm starting work on a basement bathroom. Plumbing was roughed in when the house was built 10 years ago. Attached is an overall photo of the area showing the shower drain and vent, wc drain and vent, and sink drain and vent.

Shower drain will need to be moved a foot or so to accomodate my plan. Concrete has already been busted up.

WC is fine right where it is.

Second photo shows the sink drain rough in. I need to move it over about a foot to the left. I assume this is as easy as cutting out the santee (Location A) for the trap arm and replacing it with one that is rotated 90 degrees. I'll move over a foot with the proper elevation change (1/4 inch per foot) (Location B) and then make the turn to come out in the middle of my cabinet. Question is what is the proper fitting to make the turn at Location B?? Also, does it make sense to then use wye as I exit the wall under the cabinet (Location C) in order to provide a cleanout at this location.

Any help you can provide would be great!!

Fitting "B" should be a long sweep 90.
If possible, put the clean out above (or below) the sanitary tee with an access panel. We're not allowed to install a clean out in a trap arm here (CA).

That's the first basement rough in I've seen where you didn't have to try and figure out how the venting was run (if at all).

vent

Now if only the shower vent is not right where the valve goes. We use a standard radius elbow at the turn out to the lavatory. Removing the trap to cleanout the line might be more convenient than a Y at that location. The proper spot is right below the sanitary tee in the riser, however.

Thanks to all. I think I'm pretty fortunate on this job. I've seen some of the tough situations others have been in and this one should be a piece of cake.

The only challenge that I faced was that the rough in for the tub and shower is 1.5 inch and I want to put a shower in. I talked with the county inspector and he said they would go ahead and approve it at 1.5 since it was roughed in when the house was built. If I understand correctly, I will reduce the shower drain from 2 inch to 1.5 immediate after the drain and before the trap. I realize this isn't perfect, but I think it will be fine for a shower that will only get used occasionally.


dcelite - I think your suggesting that I put the cleanout where the existing san tee is. That should work. The edge of the cabinet will be just past that, so I can hide it under the vanity.

hj - I never even thought about the vent being in the way of the shower valve, but I bet your right. I think it will be no problem to move as I can just 45 over to the stud and then straight up to connect to the lateral vent line.

co

I would turn it 180 degrees so it would be accessible from the backside of the wall and not have to work inside the cabinet.

great idea - thanks