Roebic K-57 Septic System Cleaner is used to correct systems that are overworked and sluggish. Roebic K-57 Septic System Cleaner is a select blend of Roebic's exclusive bacteria that work powerfully on liquefying sewage waste that may be causing the sluggishness or the clog, thereby restoring the system back to its proper working condition. At the first sign of sluggishness immediately use Roebic K-57 Septic System Cleaner. This product may be used as often as needed. K-57 provides a concentrated attack on clogged areas relieving overloaded septic tanks, cesspools, and drain fields. K-57 will not damage drains, pipes, disposal systems or porcelain because it contains no corrosive materials. Easy to use, add directly to the toilet bowl, septic tank or cesspool. After system is restored, use Roebic K-37 Septic Tank Treatment to help maintain a properly working system by accelerating the breakdown of sewage waste, which helps to keep your septic tank functioning properly.