The sewage is clogged, what should I do?

■Clogging area
Before consulting or requesting a Public Works Office or a contractor, drain water from the area other than the clogged area (toilet, kitchen, bathroom, washing machine storage, washroom, etc.) and check the drainage status.
・If the flow of drainage is poor overall, it is thought that there is a cause in the drainage pipe in the residential land or the connection, or the sewer pipe managed by Yokohama City.
→ Please read 1.
・If only a specific location is not drained, the drain pipe in the building is considered to be clogged.
→ Please read 2.

■How to deal with it
1 The cause of the clogging is considered to be the sewer pipe managed by Yokohama City (mounting pipe and sewer pipe at the end of the connection masu), so please consult with the Public Works Office of your ward (see the related homepage). Please give me.
In addition, please talk with Public Works Office of your ward if it is not clear whether the cause of the clogging is in the residential land or the sewer pipe managed in Yokohama City.
2 If the drainage facilities (drain pipes) in the building, such as around the toilet, kitchen, and bathroom, or the drainage facilities in the residential area (drain pipes, masu, etc.) in the residential area, please clean it yourself.
If you are unable to clean it yourself or need to repair it.
・The contractor who constructed the water around your house
・Drainage equipment supplier I know
・Nearby Yokohama City Drainage Equipment Designated Construction Shop, etc.
Please contact us for more information.

※Until connecting from toilets, kitchens, bathrooms, etc. (The last masu for collecting drainage in residential land and flowing it into the sewer pipe managed by Yokohama City is called "connection"). The owner should maintain.

※Please note that some designated construction shops do not clean drain drain pipes (without construction).

List of Public Works Office in each ward

Please see the related website for Yokohama City Drainage Equipment Designated Construction Shop.
Yokohama Drainage Equipment Designated Construction Shop
※"Yokohama City Pipe Works Cooperative (Telephone 681-6631)" which is a business group in Yokohama City, also introduces members of the union (Yokohama City Drainage Designated Construction Shop). (Reception hours 8:30 to 17:30)
However, the union just introduces a trader. Please consult directly with the designated drainage facility designated construction shop for consultation on the contents and costs of construction.