The water quality varies from place to place, so the water flowing from your faucet may be hard water or soft water.
Rainwater belongs to “soft water” (because natural rainwater is weakly acidic), but if rainwater passes through certain rock formations and then leads to the home, it will become alkaline, which is “hard water” because of the mines in chalk or limestone. Substance compounds such as calcium or magnesium are dissolved in water.
Most people think that hard water is better than soft water, and the minerals contained in hard water are also good for bones and teeth; but hard water also has shortcomings, such as hard water, it is difficult to make soap, and the mineral compounds in hard water will even follow The soap reacts to produce scum.
In addition, when hard water is heated, scale is formed and adheres to heating elements of household appliances such as hot water bottles, thereby affecting their overall operational efficiency.