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Do you know how water softener system works? When the raw water containing hardness ions through the resin layer in the exchanger, the calcium and magnesium ions in the water will be replaced with the sodium ions adsorbed by the resin, the resin adsorbed calcium and magnesium ions and sodium ions into the water, so the water flowing from the exchanger is to remove the hardness of the softening water.

Because the hardness of water is mainly formed and expressed by calcium and magnesium, it is generally used cation exchange resin (water softener), the water Ca2+, Mg2+(the main component of the formation of scale) replacement out, with the increase of Ca2+, Mg2+ in the resin, the resin removal of Ca2+, Mg2+ efficiency gradually reduced.

When the resin absorbs a certain amount of calcium and magnesium ions, it must be regenerated, the regeneration process is to use salt water in the salt box to wash the resin layer, the resin on the hardness of the ion in the replacement out, with the regeneration of waste liquid discharge tank, the resin will restore the softening exchange function.