Using this soap dispenser is easy. First, install 4 D-size batteries into the battery compartment. Then, fill the translucent tank with foam soap. Mount it on the vanity as desired. When you need soap, simply place your hand under the dispenser, and it will automatically dispense foam soap. Please note that batteries are not included, so you'll need to buy them separately. Also, don't overfill the tank to avoid spillage. For maintenance, clean the exterior with a soft, damp cloth regularly. If the dispenser isn't working properly, check the battery condition and replace them if needed.