Answer:
Ballast control system
Step-by-step explanation:
The Ballast control systems are a vital part of the submersible rigs oil platforms, as it's made up of a network of pipes, valves, and pumps, and tanks which work as liquid control for keeping the temperature at a stable level as offshore drilling can extremely risky and environmental disasters can occur very often. Its is tied to the opposite side of the vessel to reduce the risk of a large chemical explosion, or counterbalance water in action.