after approximately one minute valve 160 is reconfigured so that the first set of cleaning nozzles 153 are again utilized valve 160 is cycled in this manner preferably five to seven times for a total period of about ten to twelve minutes the system of fig2 also features a refrigeration circuit indicated generally at 164 this refrigeration circuit features a heat exchanger 167 that allows heat to be removed from the liquid carbon dioxide flowing through pump line 152 a still indicated at 170 contains liquid carbon dioxide that was transferred to it during the cleaning of a previous load of garments as the agitation process is proceeding the head space of still 170 is connected to the suction side of compressor 114 the discharge side of compressor 114 is connected to the head space of storage tank 118 as a result the pressure within still 170 is decreased while the pressure in storage tank 118 is increased alternatively still 170 may be connected to the liquid side of low pressure transfer tank 112 as a result gas from still 170 flows to transfer tank 112 where it is recondensed by the cold liquid therein in either case the pressure difference created between still 170 and storage tank 118 allows the temperature of the liquid carbon dioxide in tank 118 to cause the liquid carbon dioxide in still 170 to boil as boiling occurs the residue of soluble contaminants such as soils and dyes is left behind in still 170 while the carbon dioxide vapor is routed to storage tank 118 as a result this distillation process cools storage tank 118 while simultaneously cleaning the carbon dioxide.