To keep a swimming pool work perfectly requires a variety of equipment. One such equipment is Skimmer. Skimmers are useful for cleaning of pools. They are effective in removing body oils, debris, hair and other contaminants. These are ideal for using in underground pools. Aboveground pools also possess Skimmers but they are attached or hung on the sides of pool, while floating on the surface. These come with equalizer line that prevents skimmer from air sucking. To maintain Skimmers, one requires cleaning the strainer basket. Keeping these clean will help maintain fresh and clean water in swimming pools.