Why ships pump water outward: Cargo ships discharge water from side hull orifices to adjust ballast weight, lowering draft and restoring metacentric height (GM) to prevent capsizing.
IMO D-2 COMPLIANT
Vessel Stability & Draft
Panamax Bulk Carrier
45,000 tonnes
Forepeak (Bow)
950 m³
Midship Port
1800 m³
Midship Starboard
1800 m³
Aft Wing (Stern)
1200 m³
BWMS Ecological Treatment
Target: <10 org/m³
Neutralize coastal dinoflagellates and zooplankton before side-hull discharge into destination port waters.
Panamax Bulk Carrier - Compliance Report
Calculated Voyage Parameters & IMO Convention Compliance:
Ship Draft Meters
11.20 m
Metacentric Height (GM)
2.45 m
Total Ballast Water
5,750 m³
Bio-Viability
0.8 org/m³
Ecological Risk Index
Low (0.04)