Using this Simpson washing machine recirculation hose kit is easy. First, make sure your washing machine is unplugged. Locate the top of the bowl and the pump. Connect the 119274120 hose to these two parts and secure it with the provided clamp. Attach the A02757301 recirculation nozzle as well. Once everything is connected, you're ready to start using your washing machine again. As for maintenance, check the hose regularly for any signs of wear and tear, like cracks or leaks. If you notice any issues, replace the hose right away. Always handle the parts gently to avoid damage. And remember, this kit is specifically for the mentioned Simpson models, so don't try to use it on other machines.