Our first prototype consisted of a water jug which was mounted with the components of the proposed design. The purpose of this first iteration was to determine the cooling potential of the chiller and the flow of the pump system. From this prototype we gathered data to support our plan of action. We determined that the steady state temperature differential for the system would be 20 degrees Fahrenheit, with 60 degrees out of the reservoir and 80 returned from the body.

With our further iterations of the design, we consolidated the package to a more manageable scale along with incorporating a carry bag. The pump was moved to the outside of the reservoir and the chiller was incorporated into the removable lid in the top. With the chiller in its new location, preparation of the reservoir for use is easier. The volume of water was kept consistent with the prior tests to maintain our temperature differential. The full tube system, pictured lower left, was not yet included in the design and was planned for further prototyping before the impact of COVID-19.