Using this soap dispenser is easy. First, if you've chosen the Multi - Feed system, make sure to install the “6 - SOAP - MFT” Soap Multi - Feed Tank. Then, select your preferred power supply, either the battery pack or the A/C adapter. Once it's powered on, place your hand under the spout, and the touch - free dual sensors will dispense the soap. Remember, this is a non - returnable item. When the indicator light at the base of the spout shows low soap, refill the tank promptly. Use only non - proprietary bulk foam soap for the best performance. To keep it in good condition, clean the exterior regularly with a soft cloth. Check the anti - rotational gasket/washer periodically to ensure it's in place and functioning properly. This dispenser meets ADA guidelines, so use it with confidence in accessible areas.