Question 1027 of 223 · California Water Treatment Operator Exam
Which of the following is a common problem caused by hard water?
Exactly one answer is correct.
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Correct answer to question 1027
- C: Scale buildup on pipes and water heaters
Explanation
Hard water deposits calcium carbonate scale, increases soap use and reduces heater efficiency. It is mostly a nuisance and economic issue, not a direct health concern.
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