Dishwasher salt

Regenerating salt specially grained and highly purified sodium chloride when used as a special salt for water softening systems. It is used to restore the capacity of the ion exchanger for calcium and magnesium ions. These alkaline earth metal ions are usually removed from the water in order to reduce the water hardness. When backwashing they are displaced by a high concentration of sodium ions from the ion exchange resin.

An example for water softening by ion exchange resins is the use in dishwashers. Particles on the dishes so no deposits of lime soap and lime may form, which is particularly visible on glasses and cutlery shiny and can be distracting. In areas with very soft water of the regeneration process becomes less frequent, partly regeneration could be superfluous. Usually dishwashers regularly regenerate automatically, without testing the necessity of the regenerate.

Normal table salt is only suitable for certain machines because it may contain additives such as anti-caking agents (such as magnesium chloride), iodides and fluorides. The cations of which interfere with the function of the time of the ion exchanger.

The main criteria for the quality of regeneration are its solubility and dissolution rate.

Regeneration must be in accordance with § 11 Drinking Water Regulations 2001 ( as of November 2006 ) the purity requirements of the DIN EN 973 Table 1 are Type A and Table 3.

Even during times of German salt tax, the regeneration was exempt.