Cero WATER SOFTENER can be used to soften Hard Water. Hard water can Damage your Expensive Dishwasher. Add half lid of powder with detergent to a load of Dishes in a machine. Hard water will get softened. Wash Dishes as usual. Soft water will lather easily and will not damage your Dishes and Machine. Also the amount of Soap required will be comparatively less as the water will be soft.