hard water
Americannoun
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Hard water is usually associated with well water in regions where the rocks contain a large proportion of iron-bearing minerals.
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Other plastics, including ones promoted as highly recyclable, such as clear polyethylene bottles, which hold some medications, or hard water bottles, are being recycled at just 16%.
From Los Angeles Times ● Jan. 14, 2026
As they evaporate and refill over time, Beeler said an alkali pool can be distinguished by a white ring — similar to hard water stains — that forms on exposed soil and rocks.
From Seattle Times ● Feb. 16, 2023
Gordon: The most accurate test for hard water is to send a sample to an accredited independent laboratory.
From Washington Post ● Aug. 23, 2022
Over time, hard water can also cause problems with your appliances: "Hard water also decays pipes and adds wear and tear to your washer," says Dunphy.
From Salon ● Aug. 19, 2022
She ask about hard water stains and I tell her cream of tartar.
From "The Help" by Kathryn Stockett
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