Using this soap dispenser is easy. First, install the power supply. You can either use a battery pack with 4 AA alkaline batteries or an A/C adapter. If you're using the multi - feed system, make sure to purchase and install the “6 - SOAP - MFT” Soap Multi - Feed Tank. Then, fill the tank with non - proprietary bulk foam soap. When you place your hand under the spout, the touch - free dual sensors will detect it and dispense soap. The indicator light at the base of the spout will let you know if it has power, if it's been activated, and when the soap is running low. For maintenance, keep the dispenser clean with a soft cloth. Check the anti - rotational gasket/washer regularly to make sure it's in good condition. Remember, this is a non - returnable item, so handle it with care. Also, ensure that it complies with ADA guidelines when installing it in a public place.