No matter the brand, if using water in your iron, do not use Spring Water or tap water or distilled water. They all have minerals. Use filtered water. I get a gallon from a local restaurant. It has been filtered ten times. Never had a problem with my Rowenta or other irons since I started using filtered water. I suppose you could use one of the filtering pitchers and put the water through it numerous times. It is the lime, calcium and minerals that building up and make our lives miserable when ironing.