Deep Tank
deep tank
[′dēp ‚taŋk]Deep Tank
a tank rising on the floor of the second bottom of a vessel. The deep tank is bounded by water-tight bulkheads and is provided with hatches and covers. Ballast deep tanks are provided to improve the equilibrium of a boat when it is proceeding unloaded, and sometimes they are used to distribute a free-flowing cargo or one of a lumpy consistency. Fuel deep tanks are used to store liquid fuel required by vessels. In some dry cargo vessels, a deep tank is installed for liquid cargo (such as vegetable oil or latex).