Final answer:
An accelerator and exhuster are used to reduce the time to allow water into the system.
Step-by-step explanation:
An accelerator and exhuster are used to reduce the time to allow water into the system. In physics, an accelerator refers to a device that increases the speed of an object, while an exhuster is a device that creates a vacuum or low pressure. By accelerating the water or creating a low-pressure environment, these devices can shorten the time it takes for water to flow into the system.