I live on the 3rd floor and the bathroom is blocked. I want to deal with it myself, first make a lig

Of course, this has nothing to do with you, he should find his own reason if he is blocked, if he comes to you next time and asks him to call the police, it has nothing to do with you.

In such cases, a treatment plan can and must be proposed with the property as soon as possible, and the specific modification needs to be decided by the property.

You block it, can the upstairs still work?

If it doesn't affect other people's use, and your operation is limited to your room, it's fine. >>>More

It depends on the structure of your house to understand the distribution of pipes. Otherwise, it's useless. If you say your 3 bathrooms are in one. That one uses a rone to pierce the floor. Just connect the pipes.

There are a few things to be aware of:

1. The additional pipes on the first floor will be higher than the ground level, so the position of the bathroom is generally about 25 cm higher than the other ground. >>>More