Hello, I am a master plumber specializing in solving toilet seal problems. Today, we will look into a common issue we might encounter: the destruction of the toilet seal. Let's examine why water drains from the toilet and how we can resolve this issue.

The role of the toilet seal: First, let's understand why the toilet seal is important. The toilet seal must always contain a certain amount of water, which plays a crucial role in preventing odors and pest infiltration.

Causes of toilet seal destruction: The causes of toilet seal destruction can be broadly divided into three categories. First, it may be due to a malfunction or installation error of internal toilet components, or damage to the toilet itself. Second, the accumulation of waste in the shared sewage line can create negative pressure during drainage, leading to problems. Third, there may be structural issues with the shared sewage line.

Self-check methods: Now, how can we self-check for this issue?

Let's find out what's going on. The first method is to check if the water level in the toilet tank decreases gradually after flushing. In this case, there is a high possibility that the toilet itself has a problem. The second method involves a sudden sound and the water level dropping in the toilet when someone uses the toilet upstairs. This could be due to an issue with the shared sewage pipe. 

As for solutions, if the problem lies with the toilet itself, it may require reinstallation or replacement of parts. If the issue is due to waste accumulation in the shared sewage pipe, a hot water jetting service can resolve it. Lastly, if there is a structural problem with the shared pipe, a specific household may need to install an additional vent valve on the pipe. 

These solutions require specialized equipment and involve complex procedures, so it's important to seek professional help. Additionally, thorough inspections such as plumbing endoscopy and structural assessments of the sewage pipes should be conducted to accurately identify the root cause of the problem. Today, we are discussing toilets.

We looked into the causes of toilet blockage and ways to solve it. If you're struggling with this issue, please try the methods I mentioned today or seek help from a professional. I hope your toilet returns to a clean and healthy state. If you found today's video helpful, please subscribe, like, and turn on notifications. Master Plumber.

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