I moved to an area that has very hard water, and it has been ruining my hair. Discoloured, gunky, extremely dry. I've tried just about everything - deep conditioners, de-mineralizing treatments, chelating shampoos etc. Was having to use a lot of products - smoothing milk, shine stuff, you name it.
Pretty much at my wit's end. I have naturally blonde hair that is normally in good health. After almost two years of showering in extremely hard water, my hair is in *bad* shape. In fact, after trying one of the de-mineralizing treatments, I saw brown particles coming out of my hair. Just nuts!
This morning, I tried something totally different. I had gone to the grocery store and bought a couple of gallon-sized jugs of distilled water. Used that to wash my face last night and again this morning. Poured the room-temperature distilled water into an empty, smaller-sized 500 ml water bottle. Showered as usual, but without letting the shower water touch my head. Poured most of a 500 ml bottle of distilled water in my hair. Used a very light gentle shampoo - just a tiny bit. Lathered up. Doused/rinsed it all out with more (yet another 500 ml bottle) distilled water. It was a bit of a hassle...but I was surpried at how soft and gentle the whole process was. Normally, when washing my hair in the shower - my hair feels like straw while shampooing and gets incredibly tangly and dry, no matter how much conditioner I'd use after the shampoo.
I didn't need conditioner. I didn't need hair products. After doing makeup, I removed the towel on my head and dipped a wide-tooth comb into a cup of distilled water to smooth out my bangs and get them in the 'right' place.
Hair is glossy, shiny and smooth. Bouncy and soft. With just a dime-size amount of shampoo and two 500 ml size bottles filled with distilled water. No conditioner or product needed. I waited until my hair was mostly dry, and then briefly styled it with the hair dyer to get it in place.
I think I paid 69 cents for a gallon of distlled water. No water softening system here in this ancient house, we're not going to buy one for a rental ($8,000+). And besides, a lot of softening systems use salt, which is also very damaging to hair.
To sum up - if you're at your wit's end with dry, damaged and gunked up, unhappy hair - try washing it with distilled water only, and just a lightweight, simple shampoo.
Below is a link that shows a Water Hardness map of the US. Red areas are extremely hard water, and white areas are also very hard water as well.
http://water.usgs.gov/owq/hardness-alkalinity.html
Hope this helps anyone who might also be battling hard water damage to their hair.