4th December 2019


What level of hardness is considered hard water?

Water is considered hard when it exceeds 3 grains per gallon (GPG). A GPG is equvalent to 17.1 PPM, so if your water is 171 PPM, then your hardness is 10 GPG (2). When results are returned to you and your water is found to be hard, there are a few options available to you.

Subsequently, one may also ask, is tap water hard or soft?

Hard water is water that contains an appreciable quantity of dissolved minerals (like calcium and magnesium). Soft water is treated water in which the only ion is sodium. As rainwater falls, it is naturally soft.

What is the hardness of the water?

Water Hardness. The simple definition of water hardness is the amount of dissolved calcium and magnesium in the water. Hard water is high in dissolved minerals, both calcium and magnesium.