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SpaChem Calcium Hardness Increaser

What to know about Calcium Hardness in your hot tub?

There’s nothing quite like soaking in a hot tub. What could be better than relaxing with friends or family, surrounded by soothing jets and water at the perfect temperature? Find out in this article! You might not be aware that there are some essential factors to consider when maintaining your hot tub, such as calcium hardness.

What is calcium hardness? How do you test for it, and what level should it be?

Calcium hardness is the amount of calcium in your water. What that means, however, may be more complicated than you think. Calcium doesn’t just refer to one thing; it’s a category of minerals that includes calcium, magnesium, and strontium (and maybe others too). All three are essential factors when balancing the pH levels in your hot tub and should be tested regularly.

What are the correct levels of calcium hardness in your hot tub?

  • That depends on a few factors: How often you use your hot tub, how high the pH levels are (the lower, the better) and what kind of sanitiser you’re using (if any).
    So how do we test our water?

How often should I test for calcium hardness?

  • You should ideally be testing it at least once a week, if not more often.
  • First, you need to purchase a testing kit 6 in 1 test strip will have the testing option for Total Hardness.
    Next, follow your test strip or drop bottle instructions and wait 15 seconds (or according to specific directions).

What level should calcium hardness be?

  • Ideally, it will range between 200-400 ppm, depending on what kind of hot tub you own.

What can happen if there is too much calcium hardness?

  • It will cause your pH levels to rise (which you don’t want) and could lead to the formation of scale or cloudy water. Using a Spa Scale Inhibitor weekly will help reduce andy scale formation.

What can happen if there’s not enough?

  • If it falls below 200 ppm, your hot tub may develop an odour due to excess bacteria growth.

Order your Calcium Hardness Increaser 1kg / 5kg or Spa Scale Inhibitor from SpaChem. We stock a range of hot tub chemicals.

SpaChem Scale Inhibitor

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