DRAIN CLEAN is a biodegradable product, with clears and maintains all blocked drains rapid and effective without damaging the tubes or fittings. Because of the very high specific weight DRAIN CLEAN penetrates immediately through the waste water and restores drains to full flow very fast. It removes lime, urine stone, soap, grease, hair, protein deposits, compounds of cellulose, panty liners, tampons and all organic residues. DRAIN CLEAN does not damage plastics, rubber, steel, metal, lead, or PVC piping or surfaces. To use in all situations of blocked pipes and to maintain pipes.