K-87 Soap Destroyer is formulated with Roebics powerful RoeTech bacteria to break down clog causing soap build up throughout the entire sewage system. Use in pipes, shower and laundry drains, septic systems and drywells to optimize system performance and to keep the system draining smoothly. Use 1 quart per 500 gallon capacity. 1 quart bottle. Container Size (Oz.): 32 Chemical Form: Liquid Commercial / Residential: Residential For Septic Use: Septic Safe Set Time (Min.): 4-6 hours Type of Issue: Septic Prevention Formula: Yes Number of treatments per container: 1 Compatible Pipe Material: All Drain Cleaners Type: Septic