grout in shower

crabapplemcnJune 6, 2013

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

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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.

    Bookmark   June 6, 2013 at 11:18AM
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DITTO to what krissie said

    Bookmark   June 9, 2013 at 8:19AM
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Does look like mold,maybe mildew. Buy a Clorox Bleach Pen and "paint" over the cracks. Works for me!

    Bookmark   June 10, 2013 at 9:26AM
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I use Tilex Mold & Mildew spray - works great!

    Bookmark   June 20, 2013 at 7:14AM
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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.

    Bookmark   June 21, 2013 at 8:32AM
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