What Is Hard Water?
Hard water contains dissolved calcium and magnesium ions. Commonly
referred to as "hardness minerals," dissolved calcium and magnesium
can cause numerous problems when present in a water supply.
As water falls from the sky in its various forms, it absorbs carbon
dioxide in the air and becomes slightly acidic. Water in this weak
acid state reaches and enters the ground. Since it is acidic, it
absorbs calcium and magnesium, among other things, from the layers
of rock through which it passes.
The minerals neutralize the water's acidity but also make it hard.
Then the water finds its way into larger bodies of water both above
and below ground, and eventually into our homes.
Water hardness is typically measured in "parts per million," an
indication of the quantity of dissolved calcium and magnesium the
water contains. In amounts as small as one part per million, water
is classified as "hard" to a certain degree. Most homes use water
that is considerably harder.
While many families choose to soften their water by removing the
calcium and magnesium with home water treatment equipment, many
don't even realise they have hard water.
Hard Water Facts
Studies indicate that 85% of US homes and 60% of homes in the UK
are supplied with hard water. Hard water costs you money, causes
soap scum and scale, and reduces the efficiency of water-using