A water softener reduces hardness minerals in water, commonly calcium and magnesium. Many residential systems use ion exchange to replace those minerals as water passes through the unit. Reducing hardness can help limit scale buildup on some fixtures and water-using equipment.
Is one needed?
Water quality varies by source and location. Testing or reviewing a reliable water report can show whether hardness is a concern before choosing equipment. The right system size and maintenance depend on water use, hardness level, and the type of softener.
Explore Stanley’s water softener services, or return to the glossary.