Yeah I notice that whatever I use (vinegar, OxyClean, etc) kills the bacteria/mold on the sealant, but the friggin stain stays.

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Only thing that works for me is the Clorox tile spray, but it discolors my fiberglass (or whatever cheap material it's made of) tub, so I've quit using it. It gives me a headache too.
Not sure, babe, if you find out, message me
