Vertically oriented transportable container with improved stability

A transportable container apparatus comprising:

• an elongate container having a central axis, and a base attached to a bottom end of the container, wherein the container and base are substantially symmetrical about the central axis, and wherein the container is oriented substantially vertically with the base resting on a ground surface when in a working position;
• the container comprising an upper container section with upper walls substantially parallel to the central axis and a lower container section with lower walls substantially parallel to the central axis, where the upper container section has an upper cross-sectional area that is greater than a lower cross-sectional area of the lower container section, and the upper container section includes a sloping hopper at a bottom thereof, the hopper configured to direct granular material into the lower container section;
• an outlet port defined in a ported wall of the lower container section, the outlet port oriented substantially vertically when the container is in the working position, wherein a floor of the lower container section is sloped toward the outlet port such that the granular material stored in the container slides down the floor to the outlet port;
• and
• a deflector sloping downward from the bottom of the hopper at a top edge of the ported wall of the lower container section above the outlet port.