I have an old water fountain that has been in the family for a long time. It was looking very bad one day and I decided to lightly sand blast it with my home unit and then clean it then paint it. I did not know the correct paint for this project since it will go through alot of stuff, like heat, algea, bird droppings and all that.
Anyway, I was told to use swimming pool paint. I was told that priming was not necessary since I blasted it. I put this on and within three months or so, the paint started just peeling off like a bad sunburn.