Hello. I am finishing a basement bathroom with the rough in put in by the builders years ago.
I noticed that there is not a separate drain for the bathroom sink and was wondering if the vent could be used as a drain as labeled in the first picture.
my second question is that I need to move the shower drain from where it is now as. can I do this by digging the rocks out and hammering out the concrete where the drain needs to go then cutting the existing shower drain and putting in a 90 degree elbow connected to a longer pvc pipe that leads the drain to where it needs to go then again connected to a 90 degree elbow facing upward to get me to where I need the drain to be? ...sorry if that sounds confusing but I made a picture of what I am trying to do.