Old pipeline in commercial building, hotels, hospital, schools, villas and residence building. Once a pipe comes with a leakage, dirt and other germs will enter. Therefore, it will increases the risk of a water to be contaminated. It also might pipe comes with a leakage. Because of, regular use of kitchen sink, wash basin and bath tub. The dirt and other germs will enter and it will increases the risk of a water to be contaminated. Consequently, might the breed of some organism attaching itself to pipeline walls
