From www.swimmingpoolsteve.com/pag... this video talks about one of the lesser common pool chemistry variables that you might need to adjust in your pool water - calcium hardness. Calcium hardness is the measurement of the amount of calcium and magnesium in your pool water and should be in the 200 ppm to 400 ppm range for most swimming pools.
To raise calcium hardness you purchase calcium flakes from a pool and spa store and dissolve them in a bucket of pool water before adding to the pool. Always follow the instructions for the product you are using. Every pool chemical sold comes with instructions on the label for how to use, and how much to use in your pool to achieve the desired change in water chemistry. Be aware that calcium generates heat when you mix it with water so never mix with your hands, and always store calcium hardness in a secure, dry area.
To lower calcium hardness in your water requires dilution of your pool water with fresh water than has less calcium hardness. If you use cal-hypo type of pool chlorine this will leave a calcium residual in the water which is how your calcium hardness levels can climb over time.
#poolchemistry #calciumhardness #poolwater #swimmingpoolsteve
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