Once data entry is completed, tapping the “Calculate" button (1) will update and display the total volume of all three sections and the volume of each pipe section.

A tutorial video for data entry and calculation is available here.

Changing the segment-control selection (2) will change between "Metal displacement / Open-Ended Displacement", "Closed-Ended Displacement" and " Inner Volume" calculation.

After changing the segment-control selection, the “Calculate” button (1) should be tapped again to update the results.