A fluid deployment unit includes an expandable container containing mixed fluids in a gaseous region and a liquid region, where the expandable container includes a gas-out port, a liquid-out port, a gas-in port, and a liquid-in port. The fluid deployment unit includes a first three-way valve having a first port coupled to the liquid-out port, a second port coupled to the gas-out port, and a third port matable to an inlet of an electronic rack. The fluid deployment unit includes a second three-way valve having a first port matable to an input port of a liquid-to-liquid exchange unit of a testing assistant unit, a second port coupled to the gas-in port, and a third port matable to an outlet of the electronic rack, where the liquid-in port of the expandable container is matable to an output port of the liquid-to-liquid exchange unit.