The longest lasting inground pool available to builders or contractors that use swimming pool fiberglass are San Juan pools and swim spas. Aqua Bella pools are the simplest fiberglass pools to maintain and have much less maintenance than that of an underground pool. Swimming pool supplies used in a fiberglass spa shell or a fiberglass pool spa combo can be purchased from a fiberglass pool builder. Fiberglass pools in Indiana are now the most popular swimming pools when it comes to people looking for sport pools. ​ San Juan Pool Covers are available for each of our 100 fiberglass pools that we make. San Juan Pool Dealers build the worlds best Fiberglass Swimming Pools and Inground Pools.