Best product to change / strip the coour off of cotton chino's / trousers?

[adamt]

I have two pairs of trousers (chino's) that i want to change the colour of, see photo that shows my desired result:

http://tinypic.com/r/1zof9za/8

Tan colour to a stone / light creme colour

Light grey to a Gun-metal / medium grey colour

Both trousers are made of 100% cotton.

I already have the required dyes and now need a product to strip the colour out of the trousers to then apply the new colour dye.
I saw this Dylon Pre-dye colour stripper:

http://www.amazon.co.uk/Dylon-Pre-Dye-fabric-stripper-machine-x/dp/B000TAQNPM
But the reviews are bad
So does anyone know of a similar product that will strip the colour out of the trousers (chino's) ?

thanks

 

[Harold falcon]

Mods? May I?

 

[adamt]

May you what?

 

[Harold falcon]

I'm not allowed to mock new members without permission.