Ramuc Pool Paint is a premier pool coating that has a built in primer ( where that is needed ). It comes in 3 types: Epoxy, Acrylic and rubber based. Epoxy Hi-build is the longest lasting at 6-8 years. Acrylic water based is good for 2-4 years and the rubber based is good for up to 2 years. Painting a pool can save you thousands of dollars over traditional replaster jobs. Check out the link to Ramuc Pool Coatings for more details about which one would work best for you and how much you would need. I strongly recommend white paint, it will give you the bluest WATER, blue paint gives you a blue background.