If you're dealing with unsightly black water streaks on your boat or yacht, not to worry, these are actually very common. To remove black water streaks from your boat, use the best quality boat cleaner and a soft brush or sponge. Gently scrub the affected areas and rinse thoroughly. Learn how to remove black water streaks and keep reading tips and tricks to keep your boat looking its best year-round in the Seattle area with Deckhand Detailing.