Mineraluxe Calcium Plus 550g


Calcium Plus is a highly refined, calcium-rich mineral designed to raise hardness levels in hot tub water. A clean, white prill, this product is used when calcium levels are low to raise them up. This prevents premature deterioration of tub surfaces including synthetics and vinyl and unnecessary corrosion of equipment and metal surfaces. Calcium Hardness also plays an important role in ensuring the overall mineral balance is correct, enhancing comfort, chemical efficiency and cost of maintenance.

Your purchase will help to provide safe, clean water to communities in need. Visit Share the Gift of Water to learn more.

Additional Details

Raises Calcium Hardness Level
Size: 550 GM
Product Code: DML09544

Quick Steps


  • Raises Calcium Hardness (CH) 
  • Use when calcium hardness is less than 100 ppm to return to effective range of 100 – 200 ppm
  • Low CH causes;
    • Etching of plaster, grout
    • Increased overall corrosion of surfaces – staining
    • Increased risk of problems and major repair costs
  • Highest grade mineral available
    • Clean, granular, ‘prill’ form
    • Dissolves quickly and fully – even in hot water
    • Lowest impurity level available


  • Apply when needed to maintain CH between 100 – 200 ppm
  • Always test with fresh fill and monthly thereafter

As a general rule, a Mineraluxe tub requires less testing and re-balancing due to:

  • The stabilizing effects of the Mineraluxe system
  • The dramatic decrease in products and product quantities applied

How Much:

  • To raise calcium hardness: 
    • 10 g per 1,000 L raises calcium hardness by 10 ppm
  • 1 capful = 10 grams (approx.)


  • Always adjust calcium hardness after total alkalinity and pH
  • Operate pump with air off
  • Divide total amount of Mineraluxe Calcium Plus into 3 equal applications
  • Apply 1 application every 3 hours by sprinkling slowly over water surface – do not attempt to predissolve
  • Circulate for 1 – 2 hours
About the Brand

Your hot tub is meant to be a special indulgence for you and your family. The Mineraluxe Hot Tub Care System allows you to pamper yourself and maximize your ‘tubbing’ experience. Nothing could be easier to use and it delivers incredible water clarity and comfort. The absence of problems and costly fixes really takes the stress and added cost out of ownership and maximizes the experience. And best of all, for a typical hot tub owner, the Mineraluxe Hot Tub Care System costs less than your daily cup of coffee!

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