We have had a professional pool fiberglass resurfacer look at our pool and has also advised it is faulty gel coat that has not been cured properly or applied evenly!!! Barrier reef are the worse company once they have your money and their warranty is not even worth the piece of paper it’s written on!!! I’m also happy for you to come look at our pool and tell us there is an easy fix to the rubbish shell we have received.