Using your new used Westinghouse dishwasher top spray arm inlet assembly hose is easy. First, make sure your dishwasher is turned off and unplugged. Remove the old hose carefully, taking note of how it's attached. Then, connect the new hose, ensuring the gasket knob fits securely to the drum. Once installed, plug in the dishwasher and turn it on to test. Remember, check your dishwasher model number before buying to ensure a proper fit. During the 3 - month warranty period, if you notice any problems, let us know right away. But keep in mind, the warranty doesn't cover normal wear - and - tear marks or damage after use. To maintain this hose, periodically check for any signs of leaks or blockages. If you find any issues, address them promptly to keep your dishwasher running smoothly.