The concept was actually taken from the idea of a fiberglass boat. Just like a high-quality fiberglass boat, a fiberglass pool generally has no lifetime limit. The first fiberglass pool ever constructed still exists today. The fact that it can survive for so long is just one of the benefits of owning one. One of the main differences between fiberglass and other types is that a fiberglass pool is actually built entirely at the factory, not at the construction site. It arrives at the owner's home completely ready to be put directly into the ground once the hole is excavated. At that point, it simply needs to be leveled and plumbed and then the decking or patio installed. This means that a fiberglass pool can be installed in a matter of a few days, while other types of pools take much longer to complete. That can be a useful trait for the owner who may want to supervise the entire installation and most people cannot take weeks off of work for such a project. Unlike traditional poured concrete or vinyl pools, a fiberglass swimming pool is a prefabricated shell that is set in an excavated site. The inside of the fiberglass is sealed to produce a non porous, smooth surface that is very unlike concrete or vinyl. The best part is that the surface does not affect the chemistry of the water as it does not interact with it. Cleaning a fiberglass swimming pool does not require any scrubbing, it also uses less harsh chemicals for cleaning. This is a boon for people who are allergic to chlorine and hate scrubbing. Concrete develops cracks and need re-plastering on a regular basis, vinyl liners have a tendency to tear over time requiring costly replacement. Fiberglass swimming pools are devoid of such maintenance, the material to which they are constructed does not develop cracks and is not affected by the vast swing in northern climate.