The sweepers that are used to catch all the leaves, flowers, dust, branches, dead insects, oil, body lotion and other floating wastes are called skimmer. These are the main components in the construction of a pool. They are the first step of cleaning process in a pool. Skimmers are formed acccoring to the incline of the pool. So the dust and waste on the surface of water can be absorbed and canalized to the filtration system. By the advantage of the incline and the vacuum of the filtration, the skimmers keep the pool clean for a long period of time. Skimmers may even be used in still water, ponds or even seas. Poolline brand skimmers are preferred as wide mouth or square mouth. They are stainless in structure.