Hardness is usually reported as an equivalent quantity of calcium carbonate CaCO3. Generally, waters are classified according to degree of hardness. Water hardness is classified by the U. Department of Interior and the Water Quality Association as follows:. Emergency Management. Survey Manual. In scientific terms, water hardness is generally the amount of dissolved calcium and magnesium in water. But in layman's terms, you may notice water hardness when your hands still feel slimy after washing with soap and water, or when your drinking glasses at home become less than crystal clear.
Learn a lot more about water hardness on the Water Science School site. The simple definition of water hardness is the amount of dissolved calcium and magnesium in the water. Hard water is high in dissolved minerals, largely calcium and magnesium. You may have felt the effects of hard water, literally, the last time you washed your hands. Depending on the hardness of your water, after using soap to wash you may have felt like there was a film of residue left on your hands.
In hard water, soap reacts with the calcium which is relatively high in hard water to form "soap scum". When using hard water, more soap or detergent is needed to get things clean, be it your hands, hair, or your laundry. Have you done a load of dishes in the dishwasher, taken out the glasses, and noticed spots or film on them?
This is more hard-water residue—not dangerous, but unsightly. Many industrial and domestic water users are concerned about the hardness of their water. When hard water is heated, such as in a home water heater, solid deposits of calcium carbonate can form.
This scale can reduce the life of equipment, raise the costs of heating the water, lower the efficiency of electric water heaters, and clog pipes. And, yes, mineral buildup will occur in your home coffee maker too, which is why some people occasionally run vinegar an acid through the pot.
The acidity of vinegar helps to dissolve mineral particles by making them charged. These newly charged particles become attracted to the positive and negative charges in water and can be washed away easily. Hard water is not a health hazard in most cases. In fact, calcium and magnesium are both needed by humans to maintain good health. Greater Cincinnati Water Works. Northern Kentucky Water District However, hard water can also have an effect on your plumbing, especially with appliances that use heated water like water heaters, dishwashers and washing machines.
The minerals are separated from the water during the heating process and build up in the pipes. Hard water may also cause eczema and inflame other similar skin conditions. Browse the line of water softeners at Aqua Systems today and improve the quality of your water and your wellbeing.
Check our help guide for more info. Why is Hardness Important To Me?
0コメント