As long as the frame that you buy is 100 percent carbon fiber, then there is no reason to panic if it becomes submerged in water. Yet, this is changed if there are any metal inserts (such as aluminum inserts) in any of the key components. The issue here is with corrosion because even though not all metals can rust, they can all corrode. Remember, carbon fiber is not a metal and granted no metal has been submerged in water, you should be fine.