Drain liquid with effective action, in concentrated form. Dissolves within a few minutes soap residues, hair and organic fats from the sewer pipes, keeping them clean. Necessary for the sewage networks of residences, restaurants, hotels, hospitals, factories, etc. It does not damage stainless steel sinks and metal traps made of copper, lead, polyethylene and PVC. Its periodic use reduces the unpleasant odors that come from residues on the walls of the pipes. The instructions for use and precautions stated on the package must be followed carefully.