1, find the place where the water leakage.When the water pipe leaks, the wall is wet, or can see where the water leakage place.Water comes down from the top, so follow the wet marks on the wall and you'll still find the leaking pipe.

2. Mark the leaking pipe.If the pipe is actually inside the wall, then the workmen should be asked to drill holes and cut the wall.If the pipe is leaking outside the wall, it's easy.Find out what the water pipe is made of.

3, with waterproof belt treatment.You can buy this at the hardware store. It's cheap.On the outside of the leaking water pipe first with waterproof tape (also known as waterproof paper) wrapped several layers, and then with foam glue on the outside of a layer, and then on the outside of the foam glue with waterproof paper, and then on the outside of waterproof paper with a layer of foam glue wrapped.