| 21. | Hard water and chlorine can tint it blue or green.
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| 22. | The plant does well in an aquatic condition with fresh hard water and minimal light.
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| 23. | He gets bruised if he showers in hard water.
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| 24. | :Is it possible that you live in a'hard water'area?
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| 25. | This reduced limescale buildup caused by boiling hard water.
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| 26. | This is an explanation for the buildup of scale inside pipes caused by hard water.
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| 27. | What is hard water, and how can I tell?
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| 28. | A : This stain could be dirt mixed with soap residue due to hard water.
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| 29. | A : The glasses may have been etched permanently by harsh detergents or hard water.
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| 30. | Use of hard water also can cause pale foliage.
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