SUSTAINABLE BULK LIQUID DISPENSING DEVICE

摘要

A bulk liquid dispensing system includes a plurality of dispensing devices for each dispensing a respective type of bulk liquid. Each device includes a primary tank of bulk liquid communicating with a nozzle for dispensing into a reusable container which may be provided by a customer. A secondary portable tank is interchangeably connected above the primary tank to ensure continued dispensing of liquid even as the secondary tank is interchanged. A payment system associates a debit amount with a dispensed fluid from each device resulting from a user selection and a cumulative total of the debit amounts is collected from the customer in a single transaction. The devices can be operated to dispense liquid in response to input of an identification code which is generated when the user prepays, for example through a web interface, a mobile application, a point of sale tool, or a tablet application.