hard water
Noun
Meaning
water that contains mineral salts (as calcium and magnesium ions) that limit the formation of lather with soap
Source: WordNetAntonyms
Hypernyms
Examples
For example, hard water deposits are cleaned with acid solutions and grease is cleaned with alkaline solutions; they can both harm the skin and are reactive toward each other, potentially producing unwanted by-products.
Spray Tilex Daily Shower Cleaner on surfaces, walk away, and it'll prevent soap scum and hard water stains for you.
If you live in a hard water area, add one cup of to one gallon of water, then use it to water plants that love acidic soil, such as rhododendrons, heather, and azaleas.
She had always had dry skin, but a period of disruption when she was six — a move to another part of the country and a new school — combined with the local hard water triggered the eczema.
Conversely, hard water may be better to drink than that.
How do I fix hard water in my dishwasher?