It is recommended to change between two tanks ever 4 hours of operation of
feed tanks. Due to high temperatures of 45-50șC, there is a risk of bateria
growth in the feed tanks. While one of the feed tanks is in operation, the
other is being washed. The size of each tank should correspond to 15-30 min. of
the capacity of the dryer. The feed tanks are equipped with level indicators
and spray nozzles for automatic Cleaning In Place. Sometimes, the feed tanks
are replaced by vacuum tanks as an integrated part of the last calandria of the
evaporator.