Green Gobbler Drain Clog Dissolver Gobbles the toughest clogs and pipe problems. The thick/high density formula sinks through standing water to reach your problem areas. Our biodegradable formula dissolves hair, soap, toilet paper, personal care wipes and other organic materials. Our formula does not contain bleach or sodium hydroxide and is safe for PVC, ABS, copper, and cast-iron household pipes. Our dissolver can be used in the toilet as well and is safe for septic systems.Our formula is odorless, and fume-free. Green Gobbler stands behind our product and offers a 30-day Money Back Guarantee! If you aren't completely happy with your results, contact our customer service team for a hassle-free refund.