In order to reliably protect the drinking water supply from various danger sources, system separators are required by law. Grünbeck’s system separators reliably prevent backflow, back pressure and return suction of impurities into the drinking water system. The BA design as per DIN EN 12729 is approved for protection up to the high hazard category 4 stipulated in the DIN regulations EN 1717 and DIN 1988-4 and replaces pipe separators EA 1 and EA 2. In addition, the system separator GENO®-G5 protects the drinking water supply from liquids classified up to hazard category 5.