Our basement has been roughed in for a bathroom. My layout has a three floor PVC pipes coming out of the ground. The left most pipe has a tipped over bucket cemented onto the floor. There is a middle pipe at 2.5 inches and a 1.5 inch all the way to the right.
I'm GUESSING the toilet is the left most, not sure what is under the bucket, but maybe preventing the smell? There is a a plastic capped PVC pip coming down from the ceiling labeled 'BATH VENT' between the middle and right most PVC pipe.
If I would like a shower/toilet/sink in this space, does only the sink need to be attached to that overhead vent, or do all 3?