Have you tried the usual Cement Away/Grout removers etc?
What sort of black grout was it? I've found some blacks/browns stain more than others.
im sure it was micro max 2 from bal
Have you tried the usual Cement Away/Grout removers etc?
What sort of black grout was it? I've found some blacks/browns stain more than others.
Stain away was basically Nitromors wasn't it?