Product Description K-97 is a beneficial product for a variety of plumbing areas. The main line in a home going to either a septic, cesspool or municipal system tends to accumulate sludge that can cause major back-ups in a home. Main Line Cleaner, containing millions of specialized waste degrading bacteria, keeps this major line clear and flowing. K-97 is indispensable in resolving the problems of sludge build-up due to the inefficiencies of "low flow" toilets by keeping the sewer pipe clear. Undersized septic systems have an increased flow rate that can cause many problems in a leach field. By using K-97 on a weekly basis, the retention of waste degrading bacteria increases the efficacy of the smaller, overworked systems From the Manufacturer For over 50 years Roebic has developed high quality products engineered for optimum performance targeting specific problems and troublesome areas within the septic system. Trust Roebic. The Septic Professionals, for all your septic and drain care needs. From the Manufacturer For over 50 years Roebic has developed high quality products engineered for optimum performance targeting specific problems and troublesome areas within the septic system. Trust Roebic. The Septic Professionals, for all your septic and drain care needs.