424.4  Adding of charge.
  A depositor shall, as far as practicable, add the charge imposed under this chapter, or the average equivalent of the charge, to the depositor’s sales price for the petroleum subject to the charge and when added such charge shall constitute a part of the depositor’s price, shall be a debt from the receiver to the depositor until paid, and shall be recoverable at law in the same manner as other debts.
89 Acts, ch 131, §16