Originally Posted by 78puget-trawler
So heavy growth is the problem then or are barnacles and mussels also a problem? With glass boats you don't need to worry about worms at least. Is the warmer water also a problem with blisters or any gel coat defects, like causing de lam at all? Just ignorance on my part I guess never having spent much time in southern waters other than some coastal towing to San Diego and back.
Algae and barnacles. As to blisters and gel coat defects, you used the key word, "defects." Then you refer to de-lamination. Well, warmer water isn't going to cause any of that and I doubt it even accelerates it. Very cold water, especially frozen, does often cause issues.
It's not just the warmth of the water that leads to growth. It's the natural habitat and chemistry of the water too. Although not in the tropics, we do have a tropical climate. San Diego is much further north than we are. Miami is at 25.7 degrees and San Diego is at 32.7 degrees latitude.