I have plans of building a bathroom on the second floor next year. I am currently re-modelling the first floor and I would like to get the plumbing for the new bathroom in place so that I do not have to do any drywall work next year.
Can I rough in hot & cold water supply pex lines in the same stud cavity (marked with arrow in the picture) where there is a drain pipe running ? I've run out of space in the other studs.
