The purest white bead size lye available, ComStar Pure Lye Drain Opener is biodegradable, odorless and non-acidic. Unlike others, it does not contain fillers, dyes or water and can be diluted. It can also be used on fine fixtures, chrome trim, metal and plastics pipes. ComStar Pure Lye clears out clogged and slow moving drains, grease traps, cesspools and septic systems without harm. Pure Lye’s unique size bead will sink to the bottom of standing water to get right to the cause of the blockage for a fast break up. Warm water activates the beads for a powerful movement to attack the root of the stoppage. Because Pure Lye does not create fumes and is not a liquid, it is ideal for homes, schools, hospitals, cafeterias and restaurants. ComStar Pure Lye 1 lb. is food grade, 99% pure and ideal for soap making. Larger sizes are also available in 2,5, and 55 gallon containers.