On the 2nd floor, the kitchen drain is backwater, and it s very depressing!

It's okay to check them one by one.

Check the angle of the lower kitchen sewer pipe into the main pipe and the anti-odor elbow. Then there is the possibility that the sedimentary well downstairs is blocked. Cause the pipeline to be closed, and the pressure in the pipeline when the water is on and off the floor makes the water in the anti-odor elbow reverse. >>>More

There are 2 possible sewer blockages:

1. During the decoration period or the early stage of the property, the property is responsible, even if the owner causes it, the property industry does not care if you go to quarrel, the sewer is blocked and the water is blocked, it must be that the main pipeline is blocked somewhere, and you have a low floor, but you go to your home; >>>More

The sewer may be clogged, so ask someone to fix it. If you don't want someone to fix it, you can pour in some caustic soda and rinse it after a while, and it may be through.

1. Check whether the kitchen sewer backwater is caused by pipe blockage, if so, use dredging agent and hot detergent to dredge it, and do not flush the kitchen waste down. >>>More