Using this soap dispenser is easy. First, make sure you've purchased and installed the “6 - SOAP - MFT” Soap Multi - Feed Tank if you're using the Multi - Feed system. Fill the tank with liquid soap that has a viscosity between 100 cps and 5000 cps. Choose your power supply, either the battery pack or the A/C adapter, and connect it properly. When your hands are near the dispenser, the touch - free dual sensors will activate and dispense soap. The indicator light at the base of the spout will tell you if there's power, if the dispenser is working, and when the soap is running low. As for maintenance, check the soap level regularly and refill the tank when needed. Wipe the dispenser with a soft, damp cloth to keep it clean. Since it has a vandal - resistant construction, it should be durable, but avoid applying excessive force. Also, note that this is a non - returnable item. And if you ever want to switch to a Single Fill System, look for the part number with a “T” for Top Fill.