Moreover, these water guns cannot be refilled unless emptied and depressurized. Toner cartridges cannot be refilled indefinitely, because mechanical parts such as rollers wear out. There is no deposit for glass bottles which do not get refilled. These bottles can be refilled cheaply at most towns. Hagar refilled the bottle with water and gave her baby a drink. Periodically, the brine must be drained and similarly, the media must be refilled. They have ammunition that can be depleted, which can then be refilled at ammunition stations. Each one was filled before starting and often refilled during running. Instead of requiring recharging, however, the fuel cell can be refilled with hydrogen. Instead, they refilled with 90 gallons. It can be refilled periodically by access through the skin. Exhausted open pit mines may be refilled with tailings. Some implanted ports contain a small reservoir that can be refilled in the same way. As the container was unpressurized, it could easily be refilled after use. Anaerobic decomposition is rapidly restarted when the tank is refilled.