Using this soap dispenser is easy. First, choose your preferred power supply - you can use a battery pack (4xAA alkaline) or an A/C Adapter. Then, fill the 70.5oz soap tank at the top of the spout with any non-proprietary bulk foam soap. Wave your hand in front of the infrared sensor, and the soap will dispense. When the indicator light at the base of the spout shows low soap, it's time to refill. Remember, this is a non-returnable item. For maintenance, keep the dispenser clean by wiping it regularly with a soft cloth. Avoid using abrasive cleaners that could damage the Brushed Nickel PVD finish. Also, make sure to check the power supply regularly to ensure proper operation. This dispenser is vandal-resistant, but still handle it with care. It complies with ADA guidelines, so use it with confidence knowing it meets accessibility standards.