We are having our pool refinished and have noticed the fiber optic light lenses are cracked. The system is a FiberStars but the lenses and fittings appear to be Nexxus. It appears that the lens and fiber optic cable are a one piece system. Just wondering if we are in for replacing the lights/cables or the cracked lens is a cosmetic issue and water getting through won't enter the cable. Considering the fiberstars LED retrofit system as well.