A fully engineered siphonic roof drainage system, Wavin Quickstream contains an anti-vortex plate that acts as a baffle and prevents air (and debris) from entering the piping system at full flow, allowing the pipes to completely fill up with water. The water is sucked or siphoned from the roof down into the drain at high velocity. The lack of air and the downward pull of the water creates a vacuum, making the drainage process fast and efficient. Find out more about Wavin, Quickstream by tapping