Keep drains running clean and clear, with Liquid-Plumr Maintenance, Clog Remover. This trusted drain cleaner keeps pipes flowing freely by removing hair, soap scum and gunk, and it destroys tough clogs too! Perfect for showers, bathtubs, bathroom sinks, kitchen sinks and garbage disposals, Liquid-Plumr Maintenance works effectively throughout your home. It’s safe for all septic systems, garbage disposals and pipes, including PVC, plastic, copper and old pipes. 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 phosphorous. Excessive heat or cold may cause some ingredients in Liquid-Plumr to form clumps, but this should not affect its performance.