I'm going to be doing some cutting of the slab in my basement in order to put a bathroom in. There is plumbing under the slab and a pit with a tank in it, but it is probably 30 feet from where I want the bathroom. I understand I need to saw the floor, but there is roughed in load bearing stud walls in place (see this post for actual pics if necessary).
I need to go through/under these walls, so what do I do when I reach them? Cut the footers?