Central washing keeps quality in one hand but sends empty containers a long way; distributed washing cuts the kilometres but multiplies control and capacity.

The number of containers needed is daily shipments times cycle time: in an operation shipping 40 containers a day, one extra day on the empty return means 40 more containers. GEBHARDT states that the Isotec TBX can also be cleaned in an automatic wash plant.

Compare candidates per completed cycle with verified cleaning: empty-return distance, dirty-to-clean flow, water and energy metering, wastewater conditions, shift capacity.