Collapsible container apparatus for use in the storage and transportation of fluid material

Collapsible container apparatus for the storage and transportation of fluid material, which collapsible container apparatus comprises an outer bag which has a bottom and sides and which is made from a flexible material so that the outer bag is collapsible, a rigid top portion which is attached to the sides of the outer bag, a rigid base, horizontally extending constraint members which are for constraining sides of the outer bag when the collapsible container apparatus is in use and contains the fluid material, and elongate support members which are positioned adjacent the sides of the outer bag, the elongate support members are movable from a first position in which said elongate support member extend between the rigid top portion and the rigid base to hold the rigid top portion firm with respect to the rigid base, to a second position in which said elongate support member allow the sides of the outer bag to collapse by folding between the constraint members, the outer bag is not attached to the rigid base, the outer bag having a single discharge means which is located above the bottom of the outer bag, and the collapsible container apparatus further including auxiliary discharge means for raising a part of the outer bag opposite the discharge means in order to cause the discharge means to be at a lowest point of the outer bag when the container apparatus is in use whereby any fluid material remaining in the collapsible container apparatus is discharged through the discharge means, the auxiliary discharge means comprising a flexible elongate member connected to a single bottom portion of the outer bag and which passes through an anchor member on the rigid top portion such that pulling on the flexible elongate member causes the flexible elongate member to slide through the anchor member and raise the bottom portion of the outer bag, and the anchor member being positioned on one side of the collapsible container apparatus and opposite the discharge means whereby the bottom portion of the outer bag is raised adjacent said one side of the collapsible container apparatus and whereby the discharge means is moved across the rigid base towards said one side of the collapsible container apparatus thereby to tilt the bottom of the outer bag towards the discharge means such that the bottom of the outer bag is formed into a funnel shape which leads to the discharge means.