Santeen 100% Pure Lye Crystal Drain Opener - 16 oz.

Santeen Pure Lye is an industrial-strength, powerful tool to clear out drains, grease traps, septic systems and roots. This formula is the purest white, bead-size lye in the world - 99% pure! A natural drain opener, Pure Lye is biodegradable and odorless within a non-acid formula that is safe on fine fixtures, chrome trim, and metal or plastic pipes. This amazing product clears out clogged and slow-moving drains, grease traps and septic systems, without harming septic tanks or cesspools.