I hope you'll win the case Simon Dog. I have the overlapping lines as well, and have since day one a blanket in between them cause the vibrating noise alone drives me crazy.Good luck, Cas
You can unconnect a line and move it so the line that is over is under and get rid of the contact. NxStage phone support will give you all the details on how to do this safely.
I taped our lines together in several places so they can't move around.