Description No chemicals, fast and easy, uses water from garden hose to unclog main drains, outside sewer drains, basement drains, and outside deck drains. WARNING: This product can expose you to chemicals including Lead which is known to the State of California to cause cancer, birth defects or reproductive harm and Butyl Benzyl phthalate (BBP) which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov