Here's some info You need water to shampoo your hair and hard
water makes it harder to wash your hair. Each hair shaft is made
up of little scales, like shingles on a roof. Hard water tends
to make the scales stand up, which makes your hair feel rough
and tangly. Since your hair is tangled and rough, it is more
difficult to rinse out all of the soap. Soap is less effective
in very hard water because its reacts with the excess minerals
to form calcium or magnesium salts. These are not easily soluble
in water and can result in soap film. Washing hair in soft water
will have a different result because it leaves fewer insoluble
deposits on the hair. Water hardness is determined by the level
of calcium that is in the water either found naturally from the
ground or put into the water by the treatment plant. While
calcium is the element that determines hardness of water, there
are many other elements in the water that effect the texture,
volume, shine, control and health of hair. What are the minerals
that effect ha