We discovered after purchasing our older home that the in ground concrete pool had been painted and is now peeling at the deep end with quarter sized circles. I also discovered recently that the pool had originally had a diamondbrite finish that may be around 10 years old now. Can the paint be peeled off or removed and still salvage the diamondbrite (which has probably been covered by paint for at least 3 years) or is it too old at this point and would need a full resurface job?