The DIN 1986-30:2012-02 addresses environmentally friendly measures for the maintenance of operational drainage systems in buildings and properties. The revised standard includes new requirements regarding environmental, soil, and water protection through tight drainage pipes, making it highly significant for all HVAC professionals, building supervisory authorities, and drainage offices. The current Beuth commentary, authored by experienced specialists, offers support in damage assessment and remediation: they provide detailed commentary on the individual sections of the standard and describe the associated device techniques and remediation procedures.