Please be aware of the Commercial Code of Inspection of Sewage and Drainage Equipment

The owner is responsible for cleaning and managing drainage facilities in residential land.
As long as you use it normally, it rarely gets clogged or broken.

In addition, chemicals are not distributed to control turbidity and odors during sewerage and water works conducted by Sewerage and Rivers Bureau and Water Works Bureau.

If you are advised to check or repair the drainage system, refuse it if not necessary.

If there is a problem with the drainage system in the residential land, please consult your local "Yokohama City Drainage Designated Construction Shop".

In addition, "Yokohama-shi plumbing cooperative (telephone 681-6631)" which is business group in Yokohama-shi introduces union members (Yokohama-shi drainage designation construction shop). (Reception hours 8:30-17:00) However, the union will only introduce it. Please consult directly with the designated drainage facility construction shop for consultation on the contents and costs of the construction.

Visit households living alone or households who become alone during the day, inspect unnecessary drainage facilities (drain pipes, sewage masu, etc.) in residential lands, request unfair prices, and sell chemicals and equipment Inspection and commercial methods of selling are occurring in various places.

"I'm doing sewerage work nearby, so I'd like you to check if the smell is coming out of the drainage system in the residential land." Open the lid of the sewage masu, sprinkle the deodorant without permission, and charge the price. I do.
"I came from the city hall." Visit in a confusing way that is related to the city hall, such as "I came with the introduction of the government office."
Check by saying, "It's free now," find a defective part, and forcibly repair it.
If you refuse, you will appear in an intimidating manner of extortion and forcibly press the contract.

I never go home. Let's refuse it.
If you are too persistent for a contract, tell them to contact the police.
Don't move even if you say a throw-out sentence on your way home.
Also, make sure that there are no suspicious stickers or landmarks on the gateposts and entrances, and remove them.
(It may be a landmark of various unscrupulous commercial laws.)

If you feel, "Is it strange?"
Request the presentation of an ID card or
Write down the name of the trader, the name of the person in charge, and contact information.
Please contact us for details.
Public Works Office in each district