"Please don't put toilet blocks in the water tank of your own toilet. It hurts people... Under the effect of negative pressure, polluted water with strong carcinogens will flow back into the water system, calling for immediate suicide. !" Some time ago, such a message was circulated in the WeChat circle of friends.
A few days ago, the reporter asked relevant experts. Experts have confirmed that the backwater of the toilet tank will happen, but the chance is not high, so there is no need to panic, as long as the float valve in the tank is regularly checked for damage. Once the taps in the home flow out of the blue tap water, it is not dangerous to drain the dyed water in time.
A household faucet from the civil aviation road flows out of the blue water
The water in the toilet tank has been reversed in a residential building in the urban civil aviation road. One day, the residential building was restored to water supply after the water was stopped. A household living on the second floor unscrewed its own faucet and found that the faucet flowed out of the deep blue water. When the residents thought that there was a problem with the water quality, they called the complaints from the water supply department.
The staff of the Water Quality Management Department of the Municipal Public Group's Water Company came to the scene and found that the color of the tap water is very similar to the color of the common toilet block. However, the residents on the 2nd floor did not use the toilet block. Based on experience, the staff concluded that the water in the toilet tank of other households may have flowed back. After a door-to-door inquiry, I finally found the source in a household on the 5th floor of the same building.
What will cause the water tank to flow backwards?
How can the blue water in the toilet tank on the 5th floor flow into the water pipe? How can it flow to the household on the 2nd floor?
Ni Haihong, deputy director of the Water Quality Management Department of the Municipal Public Group Water Supply Company, said that under normal circumstances, there is a certain pressure on the inlet pipe of the toilet tank, and the water in the tank does not flow into the inlet pipe. When the tank enters the water, the float rises, closing the float valve in the tank.
However, after a long time, the float valve is easily damaged. At this time, if the water is stopped, the water inlet pipe forms a negative pressure, and there is water in the water tank, which easily causes the water containing the components of the toilet block in the water tank to be poured into the water inlet pipe, thereby flowing into the unit water supply pipe network.
When handling the complaint, the staff of the water quality management department of the branch found that the float valve in the toilet tank of the fifth floor had been damaged, which is consistent with the reason for most similar complaints.
Since the water containing the components of the toilet block enters the water supply network of the unit, why is there only blue water in the household on the 2nd floor? Ni Haihong said that there may not be much blue water in the pipeline, and other households may go to work when the water supply is restored. Not at home, and the second floor of the household opened the faucet earlier.
Such complaints received four or five a year
The water in the toilet tank back to the water supply pipe network does occur, but because of the complicated conditions, the probability of occurrence is not high. During the year, the Water Quality Management Office of the Municipal Public Group Water Supply Company received complaints only four or five times because of similar circumstances.
Ni Haihong said that under normal circumstances, it is necessary to pay attention to whether the toilet tank leaks, that is, whether there is dripping sound in the tank. Once the water leaks, it means that the float valve is damaged and should be repaired in time. If you are not at ease, you can add a check valve to the inlet of the toilet to allow the water in the inlet pipe to flow into the tank only in one direction.
Another concern of the net transmission is that it is reliable to mistakenly drink water containing the components of the toilet block.
Ma Jianhua, a professor at the School of Chemistry and Materials Engineering at Wenzhou University, said that the specific composition of each toilet block may be different because the toilet block contains dyes, active agents, etc., and prolonged contact can irritate the skin. In an interview with the media, Professor Lai Lai of the Department of Chemical Engineering of Beijing Institute of Petrochemical Technology said that no examples have been found to prove that the toilet block is carcinogenic. It is said that the harmful effects of these chemical components on the human body are mainly reflected in the irritancy, so it is recommended not to Frequent or prolonged contact. [Follow the WeChat public number "Jiuzheng bathroom network"; attention to surprises, scan code view: bathroom owners with these few tips to make a profit! Jiuzheng bathroom network exchange group]
Soap Holder,How to Install Soap Holder,Brass Soap Basket,Installing Soap Holder in Shower
Kaiping Jenor Sanitary Ware Co., Ltd , https://www.kpjenorsanitary.com