




Ballast knob - no idea what that means. Are they referring to the ball-valves in the bilge to close them when done?
If so, I never did that. I assume that would prevent something from crawling into the opening? But I stored my boat inside a garage.
If the boat was sitting outside with a cover on, I could cover or close all openings, including the exhaust.
2018 Supra SL400