Water Hardener 2kg

$19.90 NZD

Water Hardener 2kg


Brand:  PoolWise

Chemical Type:  Water Softener

Chemical Base:  Calcium Chloride

Size:  2kg


Water Hardener (Calcium chloride) for swimming pools is a chemical compound used to maintain healthy water. Water can be ‘hard’ or ‘soft’ depending on the dissolved mineral content. If the calcium hardness level is too low, this can cause etching of plaster and metal corrosion. If the calcium hardness level is too high, this can cause scale formation, marble discolouration, and cloudy water.


  • Softens the water
  • Protects equipment from corrosion
  • Good for our bodies, leaving skin soft and smooth

Dosage:  Rates are listed on the back of the product. Always test before you add chemicals.


Safety:  See packaging or download the MSDS here


Also available in  350g750g4kg8kg,  and (10kg pail)


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