not something that can be covered in a reply. A bleaching reaction is the most effective but it will depend on fibre and severity of stain adding oxidiser to spm in many cases will be enough but you need to find the levels that are not going to create you more problems.
The more volatile you go the greater the risks, it is not something that you learn overnight.
It is well worth getting competent as there are not that many stains that cannot be removed if you have the skill. As a starting point hydrmaster knockout a and b mixture, prochem oxibrite, fibre buff and fibre shampoo, texatherm cbt remover are all great chems, and relatively safe if you are sensible with them.
You can then advance onto making your own peroxide/ammonia mixture as you become competent.
Peter
www.carpoetcleanercardiff.comhttp://