I am going to raise the waterline 150mm, so the hull needs to be clean for the new paint. The previous waterline was about 15mm too low, I guess it was calculated for an empty boat… But the boat is far from empty nowadays!! But as you can see there is dirt and algae growth far above the waterline. And this dirt was very hard to clean above the antifouling edge. So both the antifouling and the white strip is moving up 150mm, even if that changes the look a bit. It will be easier to clean.