"I've been washing, conditioning, and deep conditioning for a while now, but my hair hasn't changed a bit! What's up?"Hard water might be to blame. Hard water has a high mineral and chlorine content. Hard water minerals primarily consist of calcium (Ca2+), and magnesium (Mg2+) metal cations, and sometimes other dissolved compounds such as bicarbonates and sulfates. According to the United States Geological Survey, 89.3% of US homes have hard water. Craziness! Having hard water can leave your hair dull, lifeless, and dry. The best way to tell if you have hard water is to simply look at your faucet. Lime residue -- the icky clear stuff -- is the primary sign of hard water.
Treating Hard Water
A water softener could be one way to solve your hard water issue. Why? Water softeners effectively reduce the concentration of hardness minerals to tolerable levels, thus making the water softer and "smoother."
You could also invest in a water filter. Water filters reduce the amount of mineral and chlorine deposits down to about 54-95% (although some companies will claim to reduce it to 99%). A popular water filter you can use is the iWater System.
If you want healthier hair, I suggest you invest in a water softener or filter. You (and your hair) won't regret it! Softer water also means longer color for those who color their hair. If you don't want to buy a softener or filter, you can always wash your hair with a chelating shampoo...