Pro Products Sani-System SS96WS water softener sanitizer is designed to clean water softening units. SS96WS liquid concentrate is efficient and easy to use. It is pre-measured in the correct dose for your system. Do you have hardness issues in your drinking water supply with dissolved calcium and magnesium that require extensive softening to prevent limescale deposits? Keep your water softener clean by using a premium product like Sani-System SS96WS when the system is newly installed, and twice a year after that. It should also be used after repairs by a technician, or whenever a boil water alert has been issued in your area.