How often should a sea-strainer be cleaned?

Cleaning a sea-strainer "as needed" is the appropriate answer because it allows for flexibility based on the actual conditions and operational environment of the marine system. Sea-strainers are designed to filter out debris and contaminants from the seawater used for cooling systems, and their cleaning frequency will depend on various factors such as water quality, the amount of debris in the operating environment, and the specific use case of the vessel.

When a boat operates in an area with heavy marine life or debris, the strainer may become clogged more quickly, necessitating more frequent cleaning. Conversely, in cleaner waters, a strainer may require less frequent maintenance. Therefore, establishing a routine based on observed conditions and the performance of the cooling system is essential for efficient operation. This flexible approach helps ensure that the strainer functions effectively, preventing overheating and potential damage to the engine due to inadequate cooling.