The special nature of aggressive and special waste water
The requirements on drainage systems in commercial kitchens are particularly high: aggressive fats and food residues, etc., enter the drainage system at high discharge temperatures. To protect the material, specific coating of the drainage pipes is necessary.
Similar peculiarities prevail in hospitals. For example, residues from disinfection equipment or suspended matter and chemicals from laboratories can get into the sewage system and be harmful to the materials in the drainage system.
The safest choice there is a cast-iron drainage pipe system made of KML or MLK pipes.
In all cases, the separation of fats, starch residues and hazardous substances is compulsory prior to discharging the waste water into a public sewage system.