Is it okay for the sewage from my kitchen sewer pipe to flow westward?

It must be connected to the diving pipe, and the rainwater pipe is directly discharged to the outdoors, and it cannot be used for sewage discharge. Here's why: >>>More

The sewer pipe in the kitchen, the internal drainage is discharged into the sewage pipe

Treatment method you can first remove the rust of the skin, with glue gloves, with pure cement on the cast iron pipe, and then use the mesh cloth to wrap on the cement, and then use cement to continue to wipe on the mesh cloth, and when the cement wants to collect sweat, wipe it smooth with your hands, and then paint it with paint after drying.

Hardware and grocery stores have tools to unclog pipes, made of spiral steel wire, and one only costs a few dollars.

Fix it yourself! Property maintenance prices are too expensive!