-
The water pipe inside is broken, really.
-
There's a leak behind the wall! Waterproofing is not done.
-
It should be the joint between the water pipe and the faucet, and it should be tightened from the new with a raw belt.
-
This is the exterior wall of the bathroom, maybe the water pipe joint in the wall is damaged and the water leakage is caused by it.
Do waterproof is to prevent water from penetrating down, if it is a building, see if there is a watermark on the roof downstairs, if not, prove that the pipe under the waterproof is no problem to find a leak near the sink and toilet, the downstairs ceiling has a watermark is the pipeline is injured and leaking, this is more troublesome to find the leakage point.
It may be that there is a leak in the replacement water pipe, and it happens that the water absorption rate of the floor tiles is relatively high, so there will be a watermark.
This doesn't mean that your waterproofing is not done well. What if you can take a shower smoothly or sprinkle water on it when you do something?
From the situation you described, it should be caused by a leak in the waterproof of your home. >>>More
It depends on the situation. It could be a leak in the upper floors, a broken pipe in the wall, or a damp weather.