Using this soap dispenser is easy. First, make sure you have installed the power supply, which can be either a 4xAA alkaline battery pack or an A/C adapter. If you're using the Multi - Feed system, install the “6 - SOAP - MFT” Soap Multi - Feed Tank. When your hands approach the dispenser, the touch - free dual sensors will activate and dispense the foam soap. The indicator light at the base of the spout will show you the power status, when the dispenser is activated, and when the soap is running low. Remember, this is a non - returnable item. If you want a different fill system, look for a part number with a “T”. For maintenance, keep the dispenser clean by wiping it with a soft cloth. Check the anti - rotational gasket/washer regularly to ensure it's in good condition. This dispenser complies with ADA guidelines, so use it with confidence.