It all looks easy when you see these tv shopping channels or the infomercials advertising stain removers.
But when you analyse them, the stains are fresh, not months or even years old.
and what type of carpet fibre have they put the stain onto - thats a consideration too.
Problem is, the customer sees these commercials and thinks there is a liquid magic out there so it doesnt really matter what is spilt nor how long ago cause I can just ring some one up who says they do "stain removal" and hey presto its all done.
Never advertise stain removal - stain treatment is OK but always tell the customer BEFORE you start that whilst many stains come out, some will not.