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. Indispensable in resolving the problems of sludge build-up due to the inefficiencies of “low flow” toilets by keeping the sewer pipe clear. Used weekly on undersized septic systems, K-97 increases the efficacy of the smaller, overworked systems. Naturally breaks down waste. Digests paper, fats and grease. Ideal for low flow toilets. Safe for all pipes and the environment. Easy to use.