Using this liquid soap dispenser is easy. First, install 6 D cell batteries (not included) into the dispenser. Then, open the top-fill opening and pour in your favorite liquid soap. You can operate it manually or use the included remote control. When it comes to maintenance, regularly clean the dispenser head to prevent clogs. Also, check the battery level frequently. If the dispenser doesn't work properly, make sure the batteries are installed correctly and have enough power. Keep the dispenser in a dry place to avoid damage.