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Sea-Water Pumping for Ballasting
Ballasting or de-ballasting is a process by which sea water is taken in and out of the ship when the ship is at the port or at the sea. The sea water carried by the ship is known as ballast water.
Ballast or ballast water is sea water carried by a vessel in its ballast tanks to ensure its trim, stability and structural integrity. Ballast tanks are constructed in ships with piping system and high capacity ballast pumps to carry out the operation.
In ancient times, ships used to carry solid ballast for stability as the cargo was minimal or there was no cargo to be carried. However, as time passed difficulties were faced during loading and discharging of solid cargo. The process of transferring of solid cargo was also time-consuming and for this reason solid ballast was replaced by water ballast. As sea water was readily available and in huge amount, it was used for the ballasting and de-ballasting process.