Deadly Pool Purchasing Mistake #2:

Choosing the Wrong Pool Container 

There are two basic types of swimming pools: above-ground and in-ground. In general, above-ground pools are less expensive to install because of the materials and construction methods involved.

Unfortunately, above-ground pools are usually temporary and are not "built-to-last." The vinyl lining can get easily ripped or torn, resulting in leaks requiring constant repair. And, because above-ground pools sit above the ground, they can be an eyesore and look "out-of-place" with your backyard landscape (not to mention they are difficult to maintain and do not improve the value of your home).

Most people, however, choose to build their pools level with the ground. These are called in-ground pools. There are three basic types of in-ground pools: concrete/gunite, fiberglass, and vinyl liner.

Concrete/Gunite:

Concrete and gunite (a type of reinforced concrete) are the most common in-ground pool types because they have been on the market longer than the new, more efficient types of pools. , concrete and gunite pools are most commonly used for commercial and public swimming pools. 

Vinyl Liner:

The initial cost of vinyl lined pools can be inexpensive when compared with concrete and gunite pools and take much less time to install. However, the maintenance on vinyl lined pools is high because the liner can be easily scratched or cut, especially if there will be toys or hard objects in the pool (even mechanical pool cleaners!). To repair a vinyl lined pool, you'll need to replace the entire lining, which can cost from $2,500 to $3,500 or more depending on the time of the season for replacement.

FIberglass:

Fiberglass pools are made out of a seamless one-piece, pre-formed fiberglass container that is set in the ground and can be installed in less than five days. The fiberglass itself has a smooth, non-porous gel coat surface.

Although fiberglass pools have a wide range of sizes and shapes, and can be moved if you choose, you are restricted to those sizes and shapes that are offered, unlike a concrete or gunite pool.