Final answer:
Usually, 2 pumps are needed for Large Frozen Italian Sodas - one for the base flavor and one for carbonated water or soda.
Step-by-step explanation:
For Large Frozen Italian Sodas, usually 2 pumps are needed. One pump is used for the base flavor, such as syrup or juice, and another pump is used for the carbonated water or soda. These pumps are used to measure and dispense the right amount of each ingredient, ensuring consistent taste and proportions.