2. Video of tank sounding
Video of Draft Survey Procedure and Practical for Sounding Ballast Water Tanks and Tanks Sounding for Fuel Oil Tanks, please see below video draft survey for your reference;
3. Video Check Draft Survey Reading of Draft Mark
For better result of Draft Survey Calculation, when your doing the Draft Mark Reading please use Service Boat as close as possible to Draft Mark, please see below Video Check Draft Survey Reading by Boat;
Video of Draft Survey Procedure and Practical above for your reference when conduct a Draft Survey by a Marine Surveyor Indonesia.
Credit Video by Youtube
Sources : https://www.youtube.com/watch?v=YiiHWdmKlRM