Cleaning Hull in the water
Advice humbly requested.
Salt water-ish (brackish estuary, but mostly salt). I have a 32' full keel fiber-glass boat. I am an accomplished diver (NITROX cert. as well). I can see some minor algea growth on the upper part of my rudder, so I am sure the entire hull (below water) is in similar shape, or not far off. Obviously the amount of sunlight reaching it is a factor as well.
I intend to clean it myself since I already own all the scuba gear. However, I have never done this before, and have VERY limited hull maintenance experience of any kind.
I went out and bought some of the course green (SOS type) of scrubbies. The type usually found in the sponge/dishwashing section of the grocery store.
Then, on the way home, I started thinking.... What if these are too course/hard.... and they do a great job eliminating the current growth... but then they cause countless tiny scratches that not only compromise the longevity of the hull coat... but also allow countless microscopic crevices for new marine life to get a foothold....thereby increasing my future problems 10 fold.
Perhaps, I'm over thinking this. I would really appreciate anyone's input that has first hand experience in doing this. Any advice on proper products to use...and which ones to stay away from.
Thank you !!