Washing out chlorine?

I have read all over Science-y's blog and can't really find anything that specifically states what ingredients in a shampoo may wash out chlorine. Mainly all I can find online is this: soak your hair in water before you swim in pools. Oil up your hair before you swim in pools. Or slather your hair with conditioner before you swim in pools. Well first of all, I am not convinced that just wetting hair down with regular water prevents chlorine damage, but I guess I can see the reasoning. I am wondering what REMOVES chlorine from hair if it is already there.
I have a vit-c chloramine filter on my shower, and we used bromine in our hot tub, and I don't generally swim in pools, so it's not super imperative to find a shampoo to remove chlorine, but I've just been wondering about it lately. I use a hard water shampoo with Disodium EDTA to remove hard water buildup, but does it also removes chlorine? And if not, what kind of ingredient does it? I would think if Vit C is only the ingredient like the shower filter sites claim it is, why didn't Science-y point that out on her post about chlorine? Thoughts?
I have a vit-c chloramine filter on my shower, and we used bromine in our hot tub, and I don't generally swim in pools, so it's not super imperative to find a shampoo to remove chlorine, but I've just been wondering about it lately. I use a hard water shampoo with Disodium EDTA to remove hard water buildup, but does it also removes chlorine? And if not, what kind of ingredient does it? I would think if Vit C is only the ingredient like the shower filter sites claim it is, why didn't Science-y point that out on her post about chlorine? Thoughts?
CG since 11/2014
Mostly 2B, but ranges A-C front to back and root to tip
Low density, very coarse, high porosity
Collarbone length, gray dyed brown, dry and rough
Typical LEG routine could be any combination of:
Lo poo: Shea Moisture brand shampoo, Ion Hard Water Shampoo
Cowash: As I Am Coc Cowash
RO: GVP CB, Aussie Mega Moist, Not Your Mothers Gardenia
Leave In: As I Am LI, KCKT, or Not Your Mothers Gardenia
Enhancer: Camille Rose Curl Maker
Deep condition: SM Deep Treat Mask
Protein: Hask Keratin
Styler: Curl Keeper Original, Ouidad Climate Control gel, LA Looks gel
Mostly 2B, but ranges A-C front to back and root to tip
Low density, very coarse, high porosity
Collarbone length, gray dyed brown, dry and rough
Typical LEG routine could be any combination of:
Lo poo: Shea Moisture brand shampoo, Ion Hard Water Shampoo
Cowash: As I Am Coc Cowash
RO: GVP CB, Aussie Mega Moist, Not Your Mothers Gardenia
Leave In: As I Am LI, KCKT, or Not Your Mothers Gardenia
Enhancer: Camille Rose Curl Maker
Deep condition: SM Deep Treat Mask
Protein: Hask Keratin
Styler: Curl Keeper Original, Ouidad Climate Control gel, LA Looks gel
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RO: IN Harmonic
LI: CJ Beauticurls; Jessicurl (JC) Gelebration Spray
DC: JC Deep Conditioning Treatment; Weleda Rosemary Conditioning Oil
Stylers: JC Confident Coils; IN Volumizing Spray; IN Perfect Hold Hairspray; John Masters Sea Mist; Bumble Bb. Gel; Kenra Firm-Hold Gel; Sevi Blue Yarrow Sea Salt Spray
Low-porosity 2a/b baby-fine hair