Liquid-Plumr Industrial- Strength Urgent Clear, Clog Removers powerful, fast acting gel formula is lab-tested to blast away even the toughest clogs in 7 minutes. It quickly penetrates and dissolves hair, gunk, grease and soap scum, clearing both standing water blockages and slow flowing drains. Its safe for use in garbage disposals, septic systems and pipes, including PVC, plastic, copper and old pipes. For fast clog clearing action and smooth flowing pipes, use it in the bathroom sink, tub or shower...