Cleaning is tedious and boring, so I use the pump to help me out. A 2% caustic and water solution at 180 ºF (80 ºC) is pumped around the system using the kettle as the heat source. The solution is pumped from the kettle, through the RIMS heater to the mash tun, back to the kettle and finally through the CFC into the drains. At the end I rinse with clean, cold water in the same manner. To see more visit my Website at www.home.c2i.net/ bottomsup/enter.htm.