Black staining on tiled shower recess floor waste chrome grille.

Hi Dr. Chemical,
My house is just over 5 years old and I replaced my tiled shower recess chrome floor waste grille about 2 years ago and it needs to be replaced again. I have tried soaking it overnight in bleach (I have since read your article on the effectiveness on bleach), Easy Off BAM Bathroom Cleaner and Ajax Professional Bathroom Cleaner but nothing has any effect on it. Any ideas?
Regards,
PeterPerth.

30540cookie-checkBlack staining on tiled shower recess floor waste chrome grille.

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Anonymous
Anonymous

Try oven cleaner, then jiff, then brasso, then sand paper

Dr Chemical

Try oven cleaner. If that doesn’t work, Brasso and a bit of elbow grease should work