How many P-100 pumps should be on board according to standard practice?

According to standard practice, four P-100 pumps are typically required on board to ensure adequate fire-fighting and damage control capabilities. This number allows for redundancy and provides sufficient pumping capacity to handle various emergency scenarios, including firefighting efforts, dewatering, and other damage control operations.

Having four P-100 pumps ensures that a ship is well-prepared for unexpected situations where multiple areas of the vessel may require immediate and significant water pumping efforts. Each P-100 pump has a capacity of 100 gallons per minute, which is essential for providing rapid response capabilities during emergencies. This alignment with established guidelines promotes effective risk management and enhances overall safety on board.

Thus, the establishment of a standard number of four P-100 pumps is based on maintaining operational readiness and ensuring that the ship can meet various operational demands in emergencies.