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How to Add Calcium to Water?

Published in Water Chemistry 1 min read

A straightforward way to add calcium to water is by using calcium carbonate powder.

If you are looking to increase the calcium content of water, a direct method is to use straight-up calcium carbonate powder.

Using Calcium Carbonate Powder

As a simple solution, you can introduce calcium carbonate powder directly into the water.

  • Appearance: Adding this powder will likely make the water appear white and cloudy temporarily. This is normal as the powder dissolves.
  • Water Chemistry Impact: It's important to note that calcium carbonate not only adds calcium but also affects water chemistry.
    • It will raise your pH slightly.
    • It will raise your buffer (KH).
  • Caution: To avoid significant fluctuations in pH and KH, it is advised not to add too much at a time. Start with small amounts and monitor the effects.

Adding calcium carbonate is a practical way to boost calcium levels, suitable for various applications where increased calcium is desired, keeping in mind its impact on pH and alkalinity.

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