Using this soap dispenser is easy. First, fill the 70.5oz soap tank through the individual top - fill opening with non - proprietary bulk foam soap. You can choose to power it with a 4xAA alkaline battery pack or an A/C Adapter. Once it's powered, the indicator light at the base of the spout will show the power status. When you put your hands under the dispenser, the touch - free dual sensors will detect and dispense soap. Just make sure to keep your hands steady to avoid false activations. For maintenance, regularly check the soap level through the indicator light. If it shows low soap, refill the tank. The PVD finish on the dispenser is durable, but you can clean it gently with a soft cloth to keep it looking good. Also, because it has a vandal - resistant construction, it's built to last, but still handle it with care. And remember, it's a non - returnable item.