External Storage When storing drums and Intermediate bulk containers outside using a covered Spillpallet or Storage device is recommended, this prevents rainwater build up inside the bund or containment device. 2 Drum Hardcover 4 Drum Hardcover Poly Safetypack & Poly Safetypack Plus Hazard Hut Job Hut Steel Stores Economy Store Walk In General Purpose Stores Drum Stores IBC Stores