Newly renovated new house, after moving in, I found that the bathroom always makes a "noisy" sound. How to solve it?

1. Toilet from top to bottom. Where the sewage pipe passes, the sewage upstairs in your house will pass through your sewage pipe and then go downstairs. So theoretically, the sound of flushing upstairs will be transmitted through the pipeline, which is only a matter of size. Sometimes the decoration will be guaranteed for the sake of beauty, and sometimes it will not be included (depending on the owner's requirements). The sound of packaging is naturally small, and the sound of non-packaging is naturally loud.

2. The toilet is also connected to the sewage pipe. If it is sealed with water, it can block the sound more or less, but if it is connected, it is like a horn, and the sound is needless to say. It is estimated that it is not difficult to whistle the train with a horn.