What is the minimum number of damage control pumps recommended onboard?

The minimum number of damage control pumps recommended onboard is two. This is vital for ensuring adequate redundancy in the event of damage control operations. Having at least two pumps allows for one pump to be operational while the other can serve as a backup in case of failure. This setup ensures that if one pump experiences a malfunction or is rendered ineffective due to the conditions of a fire or flooding, the other can continue to function and provide critical support in damage control efforts. Additionally, having two pumps permits simultaneous operation, which can significantly enhance the vessel's response efficiency during emergencies. This redundancy is a standard practice in maritime safety protocols to mitigate risks and ensure the ship's integrity and crew safety.