What s going on with the watermark in the middle of the downstairs sanitary partition wall

If there are no water stains and dampness on the top of the downstairs bathroom, then it can basically be ruled out that the problem is a water leak upstairs. Generally, the downstairs bathroom itself is leaking.

If there is a leak in the bathroom, then it is imperative to find the cause of the leak in the bathroom

1. Find a professional hydropower worker to check whether the pipeline is ruptured and causes water leakage, etc., if it is a pipeline problem, it needs to be repaired in time.

repair pipes to solve water leakage problems;

2. If there is no problem with the pipeline, then consider that the waterproof layer is not done well and cause water leakage, if the local water leakage is serious, it is recommended to do the waterproofing again, so as to fundamentally solve the problem.

If there is a watermark on the roof of the bathroom, the general problem should be the waterproof damage to the floor of the upstairs bathroom, and the upstairs bathroom needs to be re-waterproofed, which is a more troublesome project.