What color is the blue of tap water?

First, because the residential water supply is generally required by the property to flush the water tank, the blue water should be the disinfection water for flushing the water tank.

Second, because many families have added blue toilet cleaning treasures to the toilet tank, but most of them do not have anti-reflux devices. Once the water supply is stopped, negative pressure will be generated in the tap water pipeline, and the blue solution in the water tank will flow back into the tap water pipeline. After the water supply is restored, blue water will flow out of the faucet. Therefore, when you come back to the water after stopping the water, you must push off a certain amount of water to eat. Even without blue, there is circulating water in every toilet tank in the water pipe. ?

Related instructions

Tap water refers to the water purified and disinfected by the tap water treatment plant, which meets the corresponding standards and is used for people's life and production. Domestic water is mainly extracted from rivers, lakes, groundwater and surface water through the water intake pumping station of waterworks. According to the national sanitary standard for drinking water, the waterworks are treated by sedimentation, disinfection, filtration and other processes, and finally delivered to various users through the water distribution pump station.

First of all, the water source must be pumped from rivers and lakes to water plants (the amount of water taken in different regions is different, and the water source directly affects the drinking water quality in a region).

Then, after coagulation, sedimentation, filtration and disinfection, it is sent to a clear water pool, and then pumped into the tap water pipeline by a water pump at high pressure. Generally, the main pipes are made of prestressed concrete pipes, steel pipes, PE pipes and ductile iron pipes.

Finally, it is diverted to the user's faucet. The whole process has to go through many water quality tests, and some places have to go through secondary pressurization and secondary disinfection before they can enter the user's home.