Unclog drains in minutes with Liquid-Plumr Urgent Clear. Its 3-in-1 action destroys hair, soap scum and grease fast. Using two powerful gels, the first gel cuts through standing water and unclogs total blockages in 7 minutes. The second gel clears slow-running drains. Perfect for the sink, tub, shower and garbage disposal, Urgent Clear is safe for all septic systems and pipes, including PVC, plastic, metal and old pipes. The patented formula destroys the top 3 causes of clogs: hair, soap scum and grease and deodorizes in just one use. Do not use with a plunger, in toilets or with ammonia, toilet bowl cleaners, or non-Liquid-Plumr clog removers (to avoid the release of hazardous gas). Liquid-Plumr contains biodegradable surfactants and no phosphorus. Excessive heat or cold may cause Liquid-Plumr to form clumps, but this should not affect its performance.