Using this soap dispenser is easy. First, install the power supply. You can choose either the battery pack with 4 AA alkaline batteries or the A/C adapter. Next, connect the soap tank. Remember, if you're using the Multi - Feed system, you need to buy the “6 - SOAP - MFT” tank separately. When your hands are near the dispenser, the touch - free dual sensors will activate and dispense the foam soap. Keep an eye on the indicator light at the base of the spout. It will tell you if there's power, when the dispenser is activated, and when the soap is running low. As for maintenance, make sure to clean the dispenser regularly with a mild cleaner. Check the anti - rotational gasket/washer to ensure it's in good condition. Also, always use non - proprietary bulk foam soap to keep the dispenser working well. And since it's a non - returnable item, be sure you've chosen the right fill system for your needs, either Multi - Feed or Single Fill.