Flow fittings are essential to ensure good water circulation in every pool construction project. The selection and strategic positioning of each component in a pool will help ensure the whole water circuit works properly and achieve optimal water quality. For pool conditions to be ideal, the water needs to be filtered, chemically treated and heated correctly. To achieve this, AstralPool flow fittings can be placed so the water is taken in through the skimmers and main drains, and returned as filtered, chemically treated and heated water through the return inlets.