If soft water is unavailable, boil hard water for 15 minutes. Cover and set aside for 24 hours, removing any scum.
Water is now ready to use.
Distilled water can be used also but this would be more expensive. If water in the home is softened by means of a water softener, it may be too soft for successful pickling. It might be best to use a blend of hard water and softened water for pickling. This information is for educational purposes only. References to commercial products or trade names does not imply endorsement by MSU Extension or bias against those not mentioned.