Noun
water that contains mineral salts (as calcium and magnesium ions) that limit the formation of lather with soap
Source: WordNetFor 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. Source: Internet
Spray Tilex Daily Shower Cleaner on surfaces, walk away, and it'll prevent soap scum and hard water stains for you. Source: Internet
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. Source: Internet
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. Source: Internet
Conversely, hard water may be better to drink than that. Source: Internet
How do I fix hard water in my dishwasher? Source: Internet