The pipes are made from UPVC-the material which makes the pipe resistant to moisture, acids, alkalis and salt air. These pipes will not rot, rust, blister, corrode or flake. Heavy duty plumbing and draining systems can be made from UPVC plumbing pipes. The pipes have smooth inner surfaces, which encourage smooth and speedy water flow. At high temperature and operating pressure, these are ideal. The strong and rigid pipes can be used in drainage pipes and sewage lines. The estimated life of such kind of pipe is more than 50 years.