Using this soap dispenser is easy. First, make sure you've got the right power source. 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, don't forget to buy the “6 - SOAP - MFT” Soap Multi - Feed Tank separately. Once it's all set up, just wave your hand under the spout, and the touch - free dual sensors will dispense the soap. The indicator light at the base of the spout will tell you if it has power, when it's activated, and when the soap is running low. As for maintenance, keep it clean by wiping it with a soft, damp cloth. Check the anti - rotational gasket/washer regularly to make sure it's in good condition. Since it's a non - returnable item, handle it with care. Also, use only liquid soap with a viscosity between 100 cps and 5000 cps for the best performance.