What is the difference between the various types of pools?
Swimming pools come in three basic varieties: concrete, vinyl-liner, and fiberglass. Concrete is the oldest method and the most labor intensive on the site. These pools are completely built on the site with steel-reinforced concrete. This allows almost infinite design flexibility. Pool builders can use one of three methods to create a concrete shell: guniting, shotcreting, and pouring concrete. The most common – gunite and shotcrete – are pneumatically applied (applied with air pressure). The concrete is shot out of a nozzle and piled onto the earthen walls of the excavation and over the steel rebar reinforcement. Pneumatically applying concrete was not the first method used to create a concrete shell. Originally, concrete pools were made of poured concrete, meaning workers create a set of forms and pour the concrete into the form to hold it into vertical walls. Shotcrete and guniting became the most common methods of concrete construction because they don’t require forms, making it qu
