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What is the ideal range for calcium hardness in a home swimming pool?

150-250 ppm
250-350 ppm
350-500 ppm
Not sure
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Question: What is the ideal range for calcium hardness in a home swimming pool?
Top Answer (50% of 8 votes): 150-250 ppm.

Answer: 150-250 ppm
Explanation: The sum of all the calcium dissolved in water is referred to as the calcium hardness. Calcium is important since high levels are unstable and become even more unstable if the pH or the total alkalinity rise above the normal levels. These imbalances can result in cloudy water and/or scale. In addition, calcium does not like warm water. As water temperature rises, calcium becomes more likely to precipitate out of solution. Calcium is actually more soluble in cold water, which is why scaling of heater equipment is so common.
NorCal Pool Builders
Answer: 250-350 ppm
Explanation: R
Answer: 350-500 ppm
Explanation: for sure at least 300 500 max
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