Using this Gojo TFX soap dispenser is easy. First, insert three C-size batteries (not included) into the dispenser. Then, place a 1200-ml refill into the dispenser. When you place your hand under the dispenser, it will automatically dispense a perfect amount of thick, foamy soap. You can check the fill level through the clear side panel strip or wait for the extra-large window to indicate it's time to refill. Make sure to keep the dispenser away from water and direct sunlight. For maintenance, clean the outside of the dispenser with a soft, dry cloth regularly. If there are any issues with the pump, contact Gojo customer service.