Help With Shop Toilet Rough-in

[Fyrme]

I'm getting ready to add a toilet room off the back of my shop in what would be a void area with my future plans. I drew up a sketch of what I think is what I need to do. But I'm hoping to get a plumber or two, to throw in some advice on the rough plumbing for the toilet and future plumbing prep.

 

[matt_i]

Only advice I could add is the "T" in the sewer line needs to be a "Y" and I'd put it in place even if the other part is going to be future.

Typical toilet flange I've seen in residential is just an elbow, with the vent going somewhere else on the waste line. But I don't see why your setup won't work.

 

[larry4406]

Attached is a picture of the bathroom rough in my former garage.

Lavy is wye'd off upstream of the toilet. I did not put a vent upstream off the toilet, I have not seen that done.

On the toilet, I used a 4x3 reducing elbow and stubbed up with 4" pipe thru the concrete. Later when the finished floor was done (tile) cut the pipe flush with the finish floor and radius the inside edge. The closet flange will then slip in tight to the 4" pipe and bottom of flange will be flush with the floor.

The lavy and urinal had their vent connected common and went out the roof.

Water service was also sleeved.

 

[Fyrme]

Yes, I had planned on the Y, the program I used was a pain in the **** and I didn't go through the trouble to make it look like a Y.

So if the toilet has no vent, Can I get away with no vent until I do the add-on, or do I need to somehow incorporate one now? That was the only reason I put the vent behind the toilet drain.

 

[ard]

Why put water lines below ground??

Sewer you have no choice, but Ive always preferred water above concrete.

 

[Fyrme]

Why put water lines below ground??

Sewer you have no choice, but Ive always preferred water above concrete.

The one below ground is the line into the building. I have it stubbed up inside the wall at two locations. From there it will be plumbed in the walls.