Follett 7 and 15 Series Ice and Water Dispensers - Cleaning and Sanitizing. If you are putting a machine back into service after a period of non-use, it needs to be cleaned and sanitized. Prior to this, there are 5 things to inspect on the machine - the Evaporator, Water Reservoir, Drain & Feed tube, Ice Hopper and Condenser. If biofilm or scale is found in the first four of these additional cleaning will be required. Please see the other Follett Service Videos for additional instruction.