Drum

The Drum is from the Extra Utilities mod. It is similar to a Barrel but for liquids. They hold 256 buckets of a single liquid. Liquid can be inserted by right clicking on the drum with a bucket, and right clicking with an empty bucket will attempt to extract from the drum. When interacting with pipes you can only pump in and out from the top or bottom of the Drum, like a Factorization Barrel The top and bottom stripes change colour to be similar to the colour of the contained liquid, although the drum's colour can be overridden by right clicking it with Dye or a Paintbrush. Shift-right clicking a drum with a Buildcraft Wrench or right clicking it with a Stick will instantly break it. Drums will keep their contained liquid when broken, similar to an OpenBlocks Tank.

Recipe
If Steel Ingots are detected in the Ore Dictionary the above recipe is replaced with: (this change can be disabled in the config file)