In my shower along the bottom where wall and shower tile floor meet, I
have a strip of silicon caulk. There are some black colored spots I
think are molds which I periodically use chlorox to clean and it keeps
coming back. I never really paid too much attention to it
until...recently I came across some reading materials about toxic black
molds...and how it can destroy someone's immunity system and cause
respiratory problems and allergy etc...I started to worry may be I
should have mold test to see what I have? Could it be I have a serious
mold problem? The mold seem to be on (or in the back of) the caulk. I
do not see any on the grout joints. I also see a few spots along the
caulk line that is between the bathroom tile wall and my pedestal sink.
Also in my kitchen near the sink, against the wall, where the back
splash meets the counter top, same thing, water always splash there.
Does it mean those are molds on the surface and cleaning it will take
care of it? Should I continue to use Chlorox periodically as they come
back to "control" them or is there a way to solve or eliminate this
problem? Does it mean I have a bigger problem behind the bathroom
walls? I don't want to over-react but I don't want to take it lightly
either, I normally research things on the net and what I read scares
the crap out of me!
I have an exhaust fan in the bathroom but apparently it did not help
the situation much. Location is Miami - the humidity capital.
I have read various recommendations and some recommended Chlorox (which
I have used but they seem to come back faster after usage), peroxide (I
have not tried this) or vinegar (I have not tried this either).
I also have used various off the counter cleaner - Oxyclean,
ShowerClean etc... that claims to eliminate mildew and mold, they don't
work - at least for me they don't.
Does this mean - that my problem is more than skin deep and killing
them at the surface does not help, or does it mean those products are
I would like to perform some mold tests myself. I did a search and
there seems to be many different DIY home test kits with drastically
varying prices - anyone has any recommendation on which to go with?
Thanks in advance,
Mold spores are everywhere, whether you see it or not. It needs food
and moisture, and loves soap scum. You probably will never be free of
it, but keeping the tile clean and dry will help. If mold/mildew is
under the caulk, it should be removed, cleaned with full-strength bleach
and recaulked. If you left a house in Florida for a few months with no
ac, mildew and mold would be growing on everything. Loves leather.
Wipe around sink fixtures after doing dishes, etc, and it will be less
Run for your life!
No seriously - The whole mold thing is really over blown. If the mold
is growing behind the caulk then the caulk may have failed and should
be replaced. There are some caulks that have mild inhibitors. Clean
regularly with bleach or a bathroom cleaner with bleach such as X-14
and you are good to go. It will be longer between cleanings if you dry
everything after each use. Who wants to do that though.
Get on with life.
Most molds are harmless. In fact many are good. Hard to tell about
what you have, but in general the scare level is a little too high pushed by
those who make money off of scared people. Note: That is not to say you
should not be concerned, it appears you are making some good choices.
In any case, who wants black moldy stuff in the shower?
I suggest that you should remove all the existing silicon calk.
Depending on the situation you may want to eliminate it all together and use
grout, or not depending on the situation. In any case, it is time to get
rid of it and if you choose to replace it with more silicon calk use the
stuff made for baths as it is mold resistant. It may loose that
resistance over the years, but you can just replace it again. Make sure you
eliminate all the mold that is there when you replace it.
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