A few years back we had a new bathtub installed.It has made into the tub
a gritty feel at a certain spot to help keep you from sliding, instead
of using a mat. I forgot to mention it is white and over the years the
gritty spots have become dark colored no matter how hard I try to clean
them or what I clean them with. I have tried using straight bleach to
get it back to normal and nothng seems to help. Any suggestions? Thank
No it can not be scraped off with my nails and I have tried Pine Sol
and Lysol and Fantastick and 409 you name it I have probaby tried it
still no luck and no the tub is not damaged. Than you for responding
It is possible the substance is dried soap, hard water, or typical tub
deposits. You can try a foaming tub and tile cleaner--spray it on,
allow it to work for several hours, scrub with a nylon brush dampened
with full-strength household ammonia, and rinse. If some of the dirt
is still present but you see an improvement, repeat the procedure.
Hope this helps.
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