- Piping and pumping arrangements
A piping diagram of the ballast system and a layout diagram of the ballast control system are to be included. The diagrams have to show the valve positions as well as identification number, position and capacity of each ballast pump. For vessels with unusual arrangement of air pipe heads or overflows such as, but not only, common air pipes, or air pipe heads arranged on closed deck, a drawing or diagram sufficiently clarifying such arrangements are to be included. If the vessel should be equipped with BWMS, it should be clearly indicated in the ballast system diagrams.
