What is the reason for the bathroom door suddenly collapsed?

Your basin doesn't have a bend, and the stench from the sewer is coming up. >>>More

If the sand and plaster on the wall is bulging, the inside will be alkali and fall off. If it is a tile, it may be caused by thermal expansion and cold contraction - it needs to be re-pasted. Explain your specific situation and then explore it.

If it is a problem with the quality of the toilet, you don't need to compensate, and you are injured because of it, and the other party needs to compensate you.

Due to the high temperature or the quality of various additives in the processing process, or the improper use of additives and reactions to each other. In fact, any chemical is toxic, but there is a difference between light and heavy, so try to smell as little as possible. You can wet the bucket and let it out in the sun less, which may remove some of the flavor.

The resurgence of moisture against the wall of the bathroom is due to the fact that the waterproofing of the wall itself is not done well, resulting in the moisture in the bathroom being adsorbed on the wall and slowly penetrating into the opposite wall. >>>More