WHAT'S NEW Common Pool Maintenance Mistakes What are the common mistakes in pool maintenance? Check this out for your guide. » Read more... Tips to select a good swimming pool builder You only get one chance—unless you're rich, that is—to have a private swimming pool built outside your home. So you better make it good. Make sure you work with only the best swimming pool builder company in your area. » Read more... FEATURED ARTICLES The most common above-ground pool shapes are square, oval, and circular swimming pools. Their simple shapes makes above-ground swimming pools smaller and shallower on average than most in-ground pools, and thus are easier to maintain. The most common above-ground pool shapes are square, oval, and circular swimming pools. Their simple shapes makes above-ground swimming pools smaller and shallower on average than most in-ground pools, and thus are easier to maintain. The most common above-ground pool shapes are square, oval, and circular swimming pools. Their simple shapes makes above-ground swimming pools smaller and shallower on average than most in-ground pools, and thus are easier to maintain. The most common above-ground pool shapes are square, oval, and circular swimming pools. Their simple shapes makes above-ground swimming pools smaller and shallower on average than most in-ground pools, and thus are easier to maintain.