The system for producing a micro-cluster liquid from a starting liquid utilizes a cavitation device with a plurality of reverse-fed pump volutes within a housing, where each volute establishes a rotational vortex for spinning the liquid in a circle and directing a liquid stream into a common chamber at a center of the housing. The starting liquid is pumped into the cavitation device at a first pressure and tangentially fed into each volute. The rotational vortex creates a partial vacuum within the spinning liquid so that cavitation bubbles are formed when the liquid exits the volute. The common chamber is maintained at a lower pressure so that the bubbles explode or implode upon exit from the volute to generate shock waves that break molecular bonds in the liquid. The volutes are oriented so that the liquid streams collide with each other within the common chamber, facilitating breakdown of molecular bonds. A discharge line connected to the common chamber carries the liquid out of the housing and into a tank for further processing.