Discuss Dark grout going white and dark residue on cloth when cleaning in the Tile Adhesive and Grout Advice area at TilersForums.com.

Hi,

We got our bathroom done just over a year ago. The tiler used mapei grout in river grey. I have noticed some of the grout lines turning white and when I try running it off I get stains on the cloth the same colour as the grout.

Does anyone have any advice?
send some pictures
 

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Dark grout going white and dark residue on cloth when cleaning
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Tile Adhesive and Grout Advice
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