In recent decades, the construction and plumbing industries have been using Clear Plastic Tube for water supply and waste-management systems. The material used is hard, tough PVC and this is seen as easier to work with than the old-fashioned metal or molded concrete pipes that were used in earlier days. Advantages: Hard plastic tubing is lightweight, tough and resistant to a great number of internal and external damage. It can withstand corrosion and pitting. Because of its light weight, it reduces transport costs, handling charges, installation etc.
They can also withstand damage by accidental knocking, which is a problem with conventional cast-iron pipes. Lengths of plastic pipe can be cut in larger sections thus reducing the number of joints. Plastic is resistant to rust, fungus and mold, thus making it better for transporting water in a more hygienic way, thus providing better health benefits. Another benefit that has been noticed in hard plastic tubes is that they are able to stay flexible enough to conform to earth movements. This is a good quality to have in seismic zones. Plastic, being an inert and stable compound, can resist action by many chemicals. It is also very cost-effective as compared to traditional plumbing pipes which were made of cast-iron, GI etc.