Answer by
HawaiianGirl (6906)
Grout stains can sometimes be difficult to remove. Try a grout stain cleaner, clean with a scrubbing brush, toothbrush, or washcloth, You'll have to scrub hard in order to remove the stains. If this does not work, it may be set in stains. If all cleaners fail at the job, you may have to regrout the area.