Pro Products Softener Mate SM12N City Water Softener Cleaner, 1.5 Pounds Great water softener cleaner for municipal/city water Provides continual softener cleaning and improves salt performance Dissolve 1 cup of Softener Mate softener cleaner in 1 quart of warm water; Pour directly into brine well and regenerate Layer between bags of salt to ensure a continuous dose of Softener Mate cleaner with each softener regeneration Maintains softener performace and restores to peak efficiency