waterspots on black

I live in SW Florida with hard water. It rains a lot and if it rains then the sun comes out it bakes the water spots into the finish. I end up polishing and waxing once a week. I use a good qualit paste wax but is seems to offer no protection from the water spots. What can I do I am pulling out my hair now.
thanks

well your water spots may be a bigger problem then you think. your car mite have been hit with acid rain. no matter how many times u wax and wash your car these spots will never go away. even with a real good buff these spots are still going to lightly show up. so if you can et a good buff and keep a nice coat of wax on the car it will help your problem.