Using this faucet is easy. Just wave your hand in front of the sensor, and the water will turn on automatically. The touch-free design helps keep the faucet clean and reduces the spread of germs. When it comes to the water supply, make sure the tempered line adapter is properly connected. For power, the included battery pack with 4xAA alkaline batteries will keep the faucet running. Keep an eye on the indicator lights in the spout. If the low - battery light comes on, it's time to replace the batteries. As for maintenance, regularly wipe the faucet with a soft, damp cloth to keep the polished chrome finish looking shiny. Avoid using abrasive cleaners as they can damage the finish. Also, check the silicone tip flow control module periodically to ensure there are no blockages and that the multiple individual laminar flow streams are working properly.