The downstairs resident said that there was water dripping on the top of the bathroom, and there was

Normally, if there are water droplets or water stains on the ceiling of the bathroom and water droplets or water stains on the wall liquid body more than 2 meters, there is a greater chance of leakage upstairs. The walls are due to the possibility that the water leaking from the upper floors leaks down between the cement mortar, plastering and waterproofing layers.

As for the watermark on the outside of the corner, the upper part is clean and traceless, and the trouble is basically caused by the waterproof layer at the joint between the bathroom wall and the ground, which is not likely to leak upstairs (the water traces below the meter are absolutely impossible to be caused by the leakage upstairs). Because if the water leaked from the ceiling, it would have already leaked outward in the middle of the wall, and it was impossible to take a hidden shot in the corner of the wall.

That's his own bathroom wall waterproofing didn't do, it's none of your business

If there is water dripping on the ceiling, it is a leak in your water pipe, if not, it is a leak in the water pipe of his own house, and most of the hidden pipes in the wall are caused by the shower joint pulling or the mixer joint seeping water in the tile wall.

There are several kinds of water dripping problems on the top, 1. Condensation.

2There is no water source on it.

If the waterproofing of your home is leaky, if the top paint of his house is relatively good, some water will seep out from the top, and some of it will leak from the wall to the corner.

There is also a situation where you have dealt with the problem of water accumulation in your house, but there is no water in the upper part, and it will be better after a while.

If it is a problem in your home, pay attention to the smooth sewers, ventilate after bathing, the waterproof is poor, and there will not be much leakage.

Your home's waterproofing is failing or not doing a good job.