A drink dispensing cart includes a drink dispensing machine that is normally
plumbed
directly into a municipal water pipe at a fixed location. The cart includes a container
of water, preferably a disposable container of water such as a bag-in-box container
of water, and a pump to pump water from the container of water to the drink dispensing
machine. A controller controls operation of the pump to operate the pump only when
water is needed by the drink dispensing machine and to provide an indication when
the container of water is empty and needs changing. A pressure sensor in an outlet
line extending between the pump and drink dispensing machine senses when water
is needed by the dispenser and a pressure sensor in an inlet line extending between
the pump and the container of water senses when the container of water is empty
and needs replacing. A time delay circuit delays start of operation of the pump
when water is needed by the drink dispenser to avoid pulsing of the pump. The bag-in-box
container of water is sized for efficient packing and shipping.
