In Ground Pools: Gunite and Fiberglass

Gunite pools are are one of the two types of in-ground pools we install. First, our crew digs a hole, puts the plumbing in place and assembles a framework grid with 3/8-inch steel reinforcing rebar rods. The rebar rods are spaced about 10 inches apart and secured with wire. When the grid is in place, the crew sprays a heavy coating of gunite, a mixture of cement and sand, around the rebar. The sprayer unit combines dry gunite mix with water just before spraying. This produces the wet concrete material. The crew trowels the gunite smooth and lets it sit for a week or so before applying a smooth finish to the rough surface. The most popular finish is called plaster, a mixture of cement and marble sand, but a lot of people finish their pools with special concrete paint. Gunite pools can also have tile, exposed aggregate or fiberglass finishes. Gunite pools are highly durable, and they can be built in any shape or size.

Fiberglass pools start with a fiberglass pool shell, manufactured off site. The installation of the shell typically takes about two days. Fiberglass pools have no liner, so there’s no need to concern yourself with puncturing the pool surface. Fiberglass pools are incredibly strong and durable so there’s no need to be concerned about damaging the pool during daily use.