The most common cause of water leaks into the cabin of first generation C-22 sailboats besides the chain plates, are the aluminum frame windows, also called portlights. The silicone that seals the glass to the frame eventually loses its adhesion and elasticity and separates from the glass. Water accumulates in the vinyl glazing channel, which isn’t watertight. The water works its way into the cabin, adding to condensation and causing stains, mildew, and odors.

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