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Old 12-24-2010, 10:43 PM   #1
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Mold under toilet

I am remodeling my bathroom. I just pulled up the toilet and linoleum and noticed a significant amount of mold underneath (see attached picture). It surrounds the toilet by about 2-2.5' in diameter; it is isolated only to the toilet area. I have sprayed it several times with a 50/50 bleach/water mixture. I plan to scrap it off with a putty knife, scrub the floor with a brush, prime it and then paint it. Eventually, I will put a either linoleum back over it or tile.

Is this a reasonable approach or should I consider tearing out the subfloor? I have two small kids in my house and worry about the health effects. I've tried to research mold online and have read varying opinions from not to be alarmed to hire a professional.

Looking for any advice (or maybe just some peace of mind).
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Mold under toilet-img_0890.jpg  


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Old 12-25-2010, 12:31 PM   #2
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There are only 1,000,000,000,000 types of molds, fungi, mildews, etc. (Maybe not that many, but alot) Get one of those mold test kits or have it professionally tested to find out whether or not it's even the "bad" stuff. Not sure if you need to rip out the subflooring but I'd at least replace the linoleum. Check under the house at that toilet to see if you can tell if it's leaked for a long time.


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Old 12-26-2010, 03:21 PM   #3
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I agree that there are a zillion types of mold, but none are good. I'd forget the kit and plan on replacing that section of the sub-floor. It's not a lot of work and worth the piece of mind. But before you do that, be sure you've identified the source of the water leak and make sure you've got it addressed. Nothing worse than replacing the floor only to find out you didn't deal with the leak.
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