he Mountain Springs Water Company has two departments, Purifying and Bottling. The Bottling Department had 3,830 liters in beginning work in process inventory (30% complete). During the period 63,610 liters were completed. The ending work in process was 5,410 liters (70% completed). All inventories are costed by the first-in, first-out method. What is the total equivalent units for direct materials (using the FIFO method) if materials were added at the beginning of the process? ____equivalent units