Before reporting blockages, you should make sure that they are not located on private property. The property owner is responsible for—and required to maintain—the pipes on the property up to the main sewer line. If an inspection chamber is present, you can check whether wastewater is still draining properly from the property, which would indicate that the blockage must be in the municipal sewer system. If an inspection chamber is present, it is usually located on the property or inside the building as an access chamber (for example, in the basement or utility room). It should be accessible at all times.

Providing precise details about the location of the blockage makes it easier to resolve. The following information is important when reporting the issue:

• Name, address, and callback number of the person reporting the issue,
• Details regarding the location of the blockage (street, house number),
• if possible, describe the exact location in more detail.

Up to two weeks, depending on the amount of work involved.