Calcium Hardness – The Solubility Controller
So far, we have discussed both pH, Total Alkalinity and how the two interact. This leads us on to our next subject – Calcium Hardness and it’s part in Water Balance.
All water has an intrinsic hardness to it. This refers to the amount of minerals, such as calcium and magnesium, which can be found dissolved into it. Here in the UK, you can find all levels of hardness from very soft through to very hard. Check with your utility supplier to find out the level of water hardness you have in your area and be aware that it can vary from postcode to postcode.