Using the Bradley 6315-00 touchless soap dispenser is a breeze. First, make sure you have 4 D-Cell batteries (not included) and insert them into the battery pack. Then, place the dispenser on a countertop with a 1-inch diameter hole and a maximum 2-inch thickness beneath the countertop. Next, install the soap refill cartridge if you have one (the cartridge is not included). When your hand approaches the dispenser, it will automatically dispense soap. Keep an eye on the LED indicator. If it flashes red, it's time to refill the soap. If it flashes yellow, change the batteries. For maintenance, clean the exterior of the dispenser regularly with a soft, damp cloth. Avoid getting water inside the motor housing as it can damage the water-resistant motor. When refilling the soap, use commercial hand soap suitable for the dispenser, either 27 or 54 ounces. And that's all you need to know to keep your dispenser working great!