I've been away from this forum for a couple of years, so I apologize if this has been discussed recently.

My 1982 Nacra 5.0 hulls are having some problems. I keep the boat in a freshwater lake for 5 months of Minnesota summer. I get a lot of algae growth that slows me down and looks ugly. I've also noticed a fair amount of pitting below the water line, which I think contributes to the algae growth. Waxing (after a good cleaning) doesn't seem to help...

I've been reading up on both gel coat repair and antifouling paint. Any recommendations?

I'm looking for solutions that I can implement at home (sorry, I don't have access to a body shop or lots of high-tech equipment). But I'm also not looking at having hulls that are mirror smooth. I'd be happy if the algae fur is shorter than my boyfriend's hair!