The skimmer pool has a continuous horizontal filtration. Nozzles, mounted on the wall, return water into the pool to the skimmers, which are located on the opposite wall. The function of the skimmer is to suck the water and take it to the filter to be purified. The skimmers are mounted 15-20 cm from the upper edge of the pool. Each skimmer is equipped with a basket that keeps the larger waste. The number of skimmers is determined by the size of the pool.