Free-board refers to the container side walls above the product line.
As cattle consume the supplement, the container's free-board is worn down or consumed. It is common for the BioBarrel™ wall and CRYSTALYX® to be at the same level as the supplement is consumed.
After CRYSTALYX® is consumed, the bottom of the BioBarrel™ is all that is left!
The remainder of the BioBarrel™ will then break down and degrade over time.
