Fast Flow revolutionises rainwater drainage technology

The Marina Bay Sands SkyPark, one of today's architectural wonders, boasts a highly efficient rainwater drainage system. About 12,400 square metres of roof drains rainwater using only nine stacking pipes merely 150mm in diameter each. Leading rainwater drainage systems designer Fast Flow made this feat possible using siphonic technology.

Rainwater normally flows through only a third of a pipe's diameter with air occupying the remaining two-thirds. Siphonics eliminates air from the pipes to allow water to flow through full bore. The technology allows the use of fewer and more slender pipes, which reduce costs and enhance building design and space as pipes can be hidden inside walls.

Fast Flow has introduced siphonic technology throughout many parts of Asia, particularly to high-rise buildings. It has applied the technology to iconic projects such as the Bird's Nest, CCTV Headquarters and the upcoming West Kowloon Terminus. The company also developed the world's first pressurised rainwater drainage system featuring an anti-backflow device, which is ideal for balconies. Combining this patented technology with siphonics, Fast Flow creates hybrid systems featuring both innovations.

Moving upstream, Fast Flow has brought to the market its own brand of lead-free pipes - the psRWDP or Pressurised System Rainwater Downpipe.

Customers can order the product from the company's website, which also allows them to design their own rainwater drainage systems. Fast Flow is also venturing into rainwater harvesting.

With a presence on the mainland, Hong Kong, Singapore, Malaysia, Thailand and Indonesia, Fast Flow has committed to expand into other Asian countries in the next two years. It plans to venture into more markets including Taiwan, South Korea and Japan.