I started a remodeling project, adding a new wall and putting a laundry room on one side and turning the half-bath on the other side into a full. Now that I'm 80% done, my wife has decided she would like the bathroom sink on the same wall as the washing machine rather than the opposite side where we originally planned. Of course, this is after I've done the plumbing for the wash. Here is a photo of the wall in question...
http://www.larryejohnson.com/photos/plumbing.jpg
Since the image is so fuzzy (I took it with a cell phone) here is a summary. The washing machine drains into a 2" pipe, reducing to 1.5". The 1.5" washing machine drain and a 1.5" utility sink meet up and drain into a 2" pipe.
My question is, what is the easiest way to add a sink just to the right of this photo?
Thanks in advance.