3F 4F 5F sewage water overflowed to the 2nd floor / drain overflow

Drain overflow
The sink drain line is blocked.
Cleaning the drainpipe from the sink on the second floor to the bottom of the first floor.
The sewage system in our country is very different from that of foreign countries.
The pipe was cut to clean the drain.
Everything will be removed in the drain.

Thanks for watching

Видео 3F 4F 5F sewage water overflowed to the 2nd floor / drain overflow канала Plumber Story