A one-storeyed storage rack arrangement (5) is provided in a water-filled pit (3). Further storage racks (10) are arranged above the storage rack arrangement (5) for the purpose of better utilisation of the storage capacity. The storage racks (10) can be displaced along the guide rails (8) in the direction (15) of the arrow. Transverse movement aisles (11) are formed in each case after the displacement. The one-storeyed storage rack arrangement (5) can be loaded and unloaded via these transverse movement aisles. The laterally open rack positions (13) of the storage racks (10) are loaded and unloaded in the direction (14) of the arrow via the movement aisles (12). IMAGE
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