About underground drainage tank

　In urban areas, the use of underground buildings is progressing due to the sophistication of land use, and the number of buildings with underground drainage tanks is increasing. Among them, in underground drainage tanks whose maintenance and structure itself are inappropriate, sewage decay progresses, generating odors and corrode of sewer pipes when sewer pipes flow in. For this reason, we have compiled a pamphlet (PDF: 1,535KB) for the purpose of enlightenment and PR for everyone who installs or manages the underground drainage tank in an easy-to-understand Q & A about the structure of the underground drainage tank, installation standards, and measures to prevent odor generation. . Since the underground drainage tank has a complicated structure, please refer to this pamphlet (PDF: 1,535KB) for installation examination and proper maintenance.