Using this soap dispenser is super easy. First, open the top part of the dispenser and insert the 1-liter soap bottle. Then, put in 6 D cell batteries in the designated battery compartment. Once it's all set up, just place it on your countertop. When you need soap, simply wave your hand under the 2.25-inch spout, and the soap will come out. As for maintenance, keep an eye on the soap level and refill the bottle when it's low. Also, make sure to check the batteries regularly. If the dispenser isn't working properly, it might be time to replace the batteries. And keep the dispenser clean by wiping it with a damp cloth every now and then.