TMC is an abbreviation of "thousand million cubic feet" - a measure used for very large water bodies such as dams and lakes.
However, it is also used as a product name for water tanks. In this case, the volume measure can be easily calculated if the tank is cylindirical, using Volume = Pi * r2 * h.
However, it is also used as a product name for water tanks. In this case, the volume measure can be easily calculated if the tank is cylindirical, using Volume = Pi * r2 * h.