2005 Greyhawk 24SS: water lines that do a U-turn in the wall
There are two water lines, side by side about 4" apart, that go up inside the wall between the kitchen sink and the shower. About 4 feet up, they join together with a fitting - basically, a U-turn in the wall! One line comes from the left side and behind the tub; the other seems to also come from the left side, but in front of the tub.
Does anyone have any idea what these lines are for? I think they are cold water lines, as they don't have any markings on them, and the hot water lines are labeled with temperature and psi ratings.