In our \"pantry\" there was a structure almost like a back-rest on top of the wheel well. It just took up space, serving no obvious purpose. I removed it, and there was plenty of room where it was to mount my water-pump, filter, and an aux. 12vdc panel. The fiber-board that covered the wheel-well also wasted a lot of space, so I removed it, too. In it\'s place I just started adding shelves, based on our particular storge needs.