Abstract: A system for automatically filling a reservoir. The system includes a first mechanism that automatically determines one or more parameters associated with the reservoir. A second mechanism fills the reservoir with an appropriate amount and type of filler based on the one or more parameters. In a specific embodiment, the one or more parameters include filler type and current filler level information. The parameters also include an identification number associated with a user of the reservoir. Upon filling of the reservoir, a billing system automatically bills or charges a user based on the identification number and filler level information obtained via the first mechanism. The billing system includes a database that maintains billing information associated with the identification number. The billing system further includes a network connection that facilitates communications with the database.

Abstract: A system for automatically filling a reservoir. The system includes a first mechanism that automatically determines one or more parameters associated with the reservoir. A second mechanism fills the reservoir with an appropriate amount and type of filler based on the one or more parameters. In a specific embodiment, the one or more parameters include filler type and current filler level information. The parameters also include an identification number associated with a user of the reservoir. Upon filling of the reservoir, a billing system automatically bills or charges a user based on the identification number and filler level information obtained via the first mechanism. The billing system includes a database that maintains billing information associated with the identification number. The billing system further includes a network connection that facilitates communications with the database.