What are regulations regarding piping, pumping and discharge arrangements as per MARPOL ?
In every oil tanker, a discharge manifold for dirty ballast water or oil contaminated water shall be located on both sides of the open deck of the ship.
Every tanker with a segregated ballast system must satisfy the following:
It shall be equipped with oil piping designed so that oil retention in the lines is kept to a minimum.
Means shall be provided to drain all cargo pumps and all oil lines on completion of cargo discharge.
Discharge of ballast water or oil contaminated water must be discharged above the waterline except:
Existing oil tankers that are not capable of doing so without modification
Existing Oil tankers operating with dedicated clean ballast tanks.
Discharge may be by method of gravity if the ship is at SEA.
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