What should be the condition of the cage housing the ball in the boat drain?

The correct condition of the cage housing the ball in the boat drain should be free from rubbish. This ensures that the drainage system operates effectively, allowing water to flow freely out of the boat and reducing the risk of flooding. If debris or rubbish obstructs the cage, it could prevent the ball from sealing properly, leading to water accumulation in the boat, which could compromise buoyancy and safety.

While having the cage empty and intact might seem appealing, it does not address the importance of cleanliness and maintenance. A corroded but functional cage could still pose risks by affecting the overall integrity of the drainage system, even if it allows water drainage. Therefore, maintaining a clean environment around the cage is crucial for the reliable function of the boat's drainage system.