2. The upper and lower water pipes are leaking at the interface with the water tank (the reason is that the pipe connection is not tight; The pipe fittings are damaged; The tap is loose.
3. The indoor pipeline leaks (reason: the pipeline connection is not tight; Damaged pipe fittings).
4. The shower is leaking (reason: the valve is broken or the metal hose is broken; Leakage caused by poor sealing gasket or loose connection).
5. The vacuum tube is damaged and leaked.
6. Cracking of welded joint.