On February 14th, the headquarters of Dahlberg SA hosted the “Technical and commercial course on black water systems” given by Rosa Dahlberg as Product Manager. The company, a pioneer in Spain in giving courses on this subject, wanted to share its knowledge and years of experience in the installation, repair and maintenance of this type of system. The event was attended by professionals from the sector who greatly appreciated the contents of the course, which was divided into three main thematic blocks: marine sanitation systems, vacuum and electric toilet technology and service.