Using this touchless faucet is easy. Just wave your hand in front of the sensors, and the water will flow. You can choose between different low-flow laminar options to suit your needs. For power, you can use the included battery pack with 4xAA alkaline batteries. If you prefer, you can also use the optional AC plug-in adapter with battery backup. When the low battery LED indicator lights up, it's time to replace the batteries. To maintain your faucet, clean it regularly with a soft cloth and mild soap. Avoid using abrasive cleaners, as they can damage the Brushed Bronze PVD finish. The centershank has a rotation-resistant locking nut, but make sure it's tightened properly during installation. Remember, this is a non-returnable item. And since it complies with ADA guidelines and is lead-free, you can use it with confidence.