In this video I show why the Motomassage was not working. In this case the hose inside the jet spine had broken and the air line was weak and broken off. I removed the 3 screws removed the jet and installed a new jet screwing it in clockwise watching the alignment of the jet face making sure the up tab was up and not over-tightening . The hole is to the right when aligned correctly and the air hose is to the left. When installing the hose it slips over the nipple and the o-ring holds the line in place.