Transportable storage with an autonomous dispensing system

The present invention relates to fluid storage and expulsion systems where the fluid is expelled out of a storage unit by a positive expulsion mechanism. In addition, the present invention relates to diaphragm-type fluid expulsion systems. The system of the present invention has a flexible bladder designed to provide for the transfer of liquids from a storage/transport unit to vehicles without the necessity of pumps and/or motors. The system includes a flexible, collapsible bladder that uses compressed gas or air, or a pressurized liquid, to pressurize the unit. The bladder is constructed with a flexible internal diaphragm which extends from a portion of the interior of the bladder, and separates the ends of the bladder. The system further comprises removable means to inject air, gas or fluid into the first end of the bladder and removable means to inject and expel the fluid stored in the second end of the bladder.