On the hardness scale, which range is considered soft water?

On the hardness scale, which range is considered soft water?

• A. 61-120 mg/L
• B. 0-60 mg/L
• C. 121-180 mg/L
• D. > 181 mg/L

Answer: (B)

Soft water means water with a very low level of dissolved minerals, especially calcium and magnesium. On the hardness scale, hardness is usually expressed in milligrams per liter as calcium carbonate (mg/L as CaCO3). When the total hardness is in the range of 0 to 60 mg/L as CaCO3, the water is considered soft. This low mineral content means less chance of forming scale in pipes and less soap scum, which is why it’s classified as soft. Once you go beyond 60 mg/L, the water is categorized into harder ranges: 61-120 mg/L is moderately hard, 121-180 mg/L is hard, and over 180 mg/L is very hard. So the 0-60 mg/L range is the soft water range.

Soft water means water with a very low level of dissolved minerals, especially calcium and magnesium. On the hardness scale, hardness is usually expressed in milligrams per liter as calcium carbonate (mg/L as CaCO3). When the total hardness is in the range of 0 to 60 mg/L as CaCO3, the water is considered soft. This low mineral content means less chance of forming scale in pipes and less soap scum, which is why it’s classified as soft. Once you go beyond 60 mg/L, the water is categorized into harder ranges: 61-120 mg/L is moderately hard, 121-180 mg/L is hard, and over 180 mg/L is very hard. So the 0-60 mg/L range is the soft water range.