Maintenance for carbon water filtration systems typically involves regular replacement of the carbon filter cartridges, which may vary depending on usage and water quality. Generally, it's recommended to replace filters every 6 to 12 months. Some systems may also require periodic backwashing or flushing to remove accumulated sediment and maintain optimal performance. Additionally, monitoring system pressure and inspecting for leaks are essential. Manufacturers may provide specific cleaning instructions based on the system's design and components for efficient operation.