The underlying operating principle of all Gamajet Cleaning machines is the process of impingement cleaning. All Gamajet units are fluid driven with no external power connections and combine pressure with liquid to produce a concentrated stream that is directed onto the surfaces to be cleaned. Very much like the focused stream of a garden hose, cleaning is accomplished at the point of stream impact. It is this impact, and the cleaning that it provides, that is impingement cleaning. But, with the Gamajet units, significant cleaning also occurs as a result of the tangential force of the stream that radiates away from that point of impact. The cleaning solution literally explodes outward, with a force directly proportional to the initial strike. It is this radiating force which actually does the cleaning. As the flow goes up, the force increases accordingly, creating a powerful spray that pounds all internal surfaces with a repeatable, rotating, and penetrating force, while also providing a cascading wash throughout the vessel. All surfaces get equally wet and equally cleaned.