From the #1 Brand* in septic system treatment, RID-X Septic Tank Treatment Liquid helps prevent septic backups** by continuously breaking down household waste. RID-X helps maintain a healthy balance of septic bacteria throughout the year in order to prevent expensive septic backups. The natural bacteria and advanced enzymes start working immediately to break down paper, protein, oils & grease. RID-X is safe for use with pipes and septic tanks. Always remember to use RID-X monthly along with occasional pumping. 8 oz of our proven formula is 1 monthly dose for septic tanks up to 1500 gallons. To use, simply pour the liquid into the toilet & flush, or into any sink drain & run water for 15 seconds. *Based on national Nielsen sales data. **Along with occasional pumping.