[quote=shortyfox]For those of you old enough to remember, gelcoat blistering was a big deal with larger sailboats that lived permanently in the water. There was a lot of speculation about the cause, but it all came down to the gelcoat application and the problem seems to be corrected. Like I said before, I've kept my catamaran in the water for as long as a week but always followed with several weeks out of the water with no problems. Letting the boat sit around for long periods of time with water in the hulls and no ventilation is very bad, there's no gelcoat on the inside. Every used boat I've looked at with soft decks and even a couple with blisters had one thing in common: They've been sitting around for years with water in the hulls and no ventilation. If you have access ports, it's much better to leave them off even though you may get some rainwater in there. And periodically tilt the bows way up and mop out any water with a small towel that doesn't completely drain.[/quote]
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