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grout in shower

Posted by crabapplemcn (My Page) on
Thu, Jun 6, 13 at 8:39

After 3 yrs in new shower, I have started to get blackness in random spots in the grout as seen in pics below. Much more visible when wet, when its dry, not nearly as bad. I have an awesome grout cleaner (grout 66) and it wont get rid of it. Is this mold? Any suggestions

photo 1


photo 2


Follow-Up Postings:

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RE: grout in shower

Yes, that is mold. Use bleach or other cleaners for mold.

Be sure and leave shower open to air and have a fan blowing into the shower area after showers for a few hours or all day or night will help prevent mold in the future.


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RE: grout in shower

DITTO to what krissie said


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RE: grout in shower

Does look like mold,maybe mildew. Buy a Clorox Bleach Pen and "paint" over the cracks. Works for me!


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RE: grout in shower

I use Tilex Mold & Mildew spray - works great!


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RE: grout in shower

Do you know if the grout was sealed? Bleach or the mold & mildew sprays work good to get rid of the mold/mildew. But for a long term solution, Home Depot sells a 20 yr grout sealer (works wonderful !!) I missed a few spots when I sealed ours & that's where the mildew shows up. No mildew at all where the areas where properly sealed.


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