Container specification and condition are very important when completing a successful flexitank transport and should conform to the following criteria. Container should be an "upgraded" 20-foot ISO dry van unit with 30000 kg gross weight load capacity and not more than 5 years of age.  Container should have: a) Corrugated steel side and front walls (Smooth walled containers are not acceptable). b) Vertical recess in door pillars to accept bulkhead-retaining dowels Container SelectionThe following criterion applies when accepting a container that is to be used in a flexitank shipment. Ensure the container complies with the specification as per above. Check all previous damage repairs. Excessive side or rear wall repairs will render the container unusable. Check all door-locking mechanisms are in good working condition. Each door should have two (2) locking bars. Ensure there is no unrepaired damage to the container and that it is "wind and water tight". To do this, step inside the container and close the door and see if any daylight is visible. The container should be rejected if there are any inward or outward dents in the walls. Check that the floor is clean, dry, and free from debris and there is no odor. Containers should be rejected if: There is excessive sidewall repair that could weaken the container. There are sharp welds on repairs that could damage the flexitank. There is floor damage, holes, broken cross beams or sharp objects that cannot be removed. There are any bolts or sharp objects protruding from the doors. The door latches are broken or bent. The container is in a general state of disrepair. If the gross weight load capacity is less than 30000kgs.