A special plastic tank designed for preparing and supplying a solution of sodium chloride (NaCL) to softening plants, complex (simultaneous) deferrization stations and softening and in water desalination plants. The salt reservoir is an integral element of the design of almost every feed filter in which the filter material is based on ion exchange resins, which require washing the material with a sodium chloride solution to restore its ion exchange properties.
The tank has the Polish hygienic certificate PZH, allowing the storage of drinking water.