Have you ever noticed that the water in the toilet will flow backwards when the water is stopped?

Under normal circumstances, there is no backflow. However, in the case of water outage, toilet tank inlet valve quality version.

Under or damage and so on, the right can only occur in such a situation.

When the tap water is stopped, the pressure in the water pipe changes, and the pressure drop will form a "siphon" phenomenon, which may cause the water in the toilet tank to flow back into the water pipe. If you have a blue toilet block in the toilet tank, it can cause blue water to come out of the tap. However, there are other conditions that need to be met for the backflow of water in the toilet tank to occur, and the water in the toilet tank must be in the presence of water in the toilet tank, and there is a problem with the filling valve in the toilet tank.

At present, some toilets on the market have installed valves at the water filling port to prevent backflow. Theoretically, when any equipment is damaged, it is a toilet with such a valve installed, and it is necessary to observe carefully when using it, and if you find that the tap water has a backflow, you should repair the toilet in time. There are many brands of toilets on the market, and the working principle is basically the same, but the internal structure is not the same, so it cannot be denied that some toilets will have unreasonable design and backflow.

Generally, before the water supply is stopped, the water company will release the news, and some property companies will also post notices in the community to inform the citizens who are worried about the backflow can close the toilet tank water supply valve when the water is stopped. First, the toilet should be repaired in time after damage to prevent the water in the toilet tank from flowing back; The second is to avoid wasting water resources.