Pools require a resurfacing approximately once every eight to ten years. However, you might notice these signs and it could be time for maintenance.
A professional can either chip out or sandblast the plaster, leaving behind the original concrete shell. The bond coat is then applied, followed by one or more coats of new plaster in the color of your choice.
There are three types, vinyl, fiberglass, and concrete, of inground pools: ones with vinyl lines, those with fiberglass liners, and ones made from concrete.