Bulk container having steel overpack

A container system comprising:

• a polymeric intermediate bulk container (IBC) including:
• an IBC body defining a storage space;
• a plurality of projections at an end of the IBC body;
• and
• a port provided on each of the plurality of projections, the ports each in fluid communication with the storage space;
• an overpack surrounding the polymeric IBC, the overpack including:
• an overpack body having an open end, a closed end, and a lip surrounding the open end;
• a cover including:
• a plurality of apertures;
• and
• a manway surrounding the plurality of apertures, the manway including a domed lid, a cylindrical side wall, a fluid passage extending through the cylindrical side wall including a burst disk configured to release pressure above a predetermined pressure;
• and
• a plurality of collars, each collar received within one of the plurality of apertures,
• wherein:
• each of the projections extends through a corresponding one of each of the apertures such that each of the ports disposed on each projection is disposed within the cylindrical side wall of the manway, and
• each of the collars is disposed between an inner surface of a corresponding one of each the apertures and an outer surface of the projection extending through the aperture.