Since the hoses were over six years old, I replaced the entire assembly. It took longer to clean up the water that was left inside the dishwasher that was spilled when I turned the unit on it's side than it did to remove and replace the hoses. There is a zip-tie that holds the drain hose up, preventing it from dragging on the floor when the unit is rolled, be sure to have a replacement handy, as you will need to cut the factory installed zip-tie, and a new one is not provided. I had to loosen a stainless clamp, used a pair of channel lock pliers to loosen a water hose connection, removed the old hose assembly, and fish the new one into the cabinet and make the connections. Took less than 15 minutes, then reloaded the dishwasher and was doing dishes. No more leaks from the coupler, and dishes came out clean again!