1. Treatment capacity of the tap water plant: Generally speaking, a properly functioning tap water plant will adjust the amount of coagulant and disinfectant used in a timely manner according to the changes in the quality of the source water to ensure that the quality of the effluent water complies with the requirements of the "Hygienic Standard for Drinking Water for Life". Therefore, the tap water being supplied is safe.
2. Impact of pipelines and water supply facilities: During heavy rainstorms, tap water pipes may be affected, resulting in poor water quality. If there are problems such as old and ruptured water pipes, sewage may flow through the cracks in the pipes and thus contaminate the tap water. Therefore, if you find that the tap water becomes yellow or turbid, it is recommended that you do not drink it and inform the property owner or the relevant departments in time to carry out investigations.
3. Temporary emergency water supply: In the aftermath of a disaster, bottled water and water prepared on-site by purification equipment are safer options. Disaster relief departments may utilize water trucks to deliver water to ensure that residents have safe drinking water. Water delivery tools should be thoroughly cleaned and disinfected before use to ensure safe water quality.
4. Personal protective measures: During floods, it is recommended that you do not drink raw water, and try to drink boiled water, bottled water, or drinking water that has been approved by the disaster relief command. Do not use water from unknown sources or contaminated water to gargle, wash vegetables, etc. At the same time, pay attention to hand cleaning, especially before and after meals and when preparing food, wash your hands carefully.
5. Disinfection methods: For temporary emergency water supply, chlorine disinfectant can be used for disinfection. Chlorine disinfectant treatment, the role of 30 minutes, the amount of residual chlorine at the outlet should not be less than 0.3mg / L. For decentralized water supply, such as directly from the river, river, canals, streams, ponds, wells, springs, and other sources of water, can be used to disinfect chlorine disinfectant.
6. Health Tips: If you find drinking water with color, odor, or turbidity, you should stop drinking immediately and report to the local health supervision department to take appropriate measures. If fever, vomiting, diarrhea and other symptoms, should promptly seek medical attention.
In short, the safety of tap water needs to be judged on a case-by-case basis after a rainstorm. It is recommended to pay close attention to local tap water and other drinking water related news and notices, and take necessary protective measures to ensure the safety of drinking water.