The vacuum system selection calculator was created in cooperation with Wavin Polska. It allows you to select a vacuum system for drainage of flat roofs. For a given area of a given roof slope, precipitation parameters and installation layout, you will receive a selection of the number of inlets, a list of the number of pipes divided into diameters and the total amount of rainwater at the outflow from the installation. The calculator allows you to quickly select the number of drains and obtain layout diagrams of the vacuum system for drainage of flat roofs. You can also download drawings, catalog cards, declarations regarding the Wavin QuickStream vacuum flat roof drainage system.