Material delivery method and system

A system for discharging dry bulk material from a container, comprising:

• a vibration unit attachable to a wall of the container and configured to apply vibration to the container;
• a feedback unit attachable to the container so as to determine an amplitude of resultant vibration of the container in response to the vibration applied by the vibration unit and configured to generate a feedback signal indicating said determined amplitude of resultant vibration;
• and
• a control unit for controlling the operation of the vibration unit to apply vibration to the container in accordance with a predetermined vibration application routine, monitor a resultant amplitude of vibration of the container resulting from the applied vibration and determine a level of dry bulk material present in the container wherein in the event that the determined level of dry bulk material is above a predetermined level, the controller ceases the application of vibration to the container for a predetermined time interval and in the event that the determined level of dry bulk material is at or below a predetermined level, the controller maintains the application of vibration to the container in accordance with the predetermined vibration application routine.