Yes, you can put ice in a water dispenser. However, there are a few things to keep in mind. First, make sure that the ice is clean and free of any contaminants. Second, only use a small amount of ice so that it does not clog the dispenser. Third, be aware that the water dispensed will be colder than usual, so adjust the temperature accordingly. Finally, make sure to clean the dispenser regularly to prevent the build-up of bacteria.