John what did you do with the cfr hand tool, after you had sprayed some of the dye on ? was it just extraction of the excess dye or did you apply something ?
I just vacuumed the excess off because i knew it was fixed ok from the previous spots . But generally, you would extract after every application to check colour change .
Like this guy here , extracting and reapplying , it can be a minefield though , if he tips his jug hes screwed also ,
https://www.youtube.com/watch?v=zq0eanSujsM I perfer to have it in sprays mostly . Also sometimes spots like fake tan would have to be bleached first . Plenty of videos on youtube to get the basics , then practise on an old carpet or some rented places what might not matter .