Rumor Identification: It is not necessary to chlorinate tap water for a minimum of two hours to disinfect the water. Rumor analysis: 1, there is no report that “tap water with chlorine disinfection of water for a minimum of two hours of standing”. Therefore, the city water supply mainly adopts chlorine disinfection technology, and the disinfectant used is sodium hypochlorite, which meets the national drinking water standards and can be drunk directly without affecting health. 2, in addition, because the residual chlorine is unstable, the process of boiling water is also decomposed and volatilized, so there is no need to fill out the water and leave it for 2 hours. There are also people sensitive to the smell of chlorine, in the water before the content reaches the concentration of health hazards, can already be clearly smelled. Special Note: Slight chlorine odor in tap water is normal and does not affect health at all. If you feel the smell of chlorine in the water is obvious, you can boil the water and then open the lid of the kettle to continue boiling for 1-2 minutes.