All,

Would appreciate any feedback on this stain, see attached picture.  This stain is on the shower bench and their several of them.  Per the customer it didn’t not start showing up until they started using the steam in the shower. And they claim that it grows only when they use the steam. To me it does not look like a rust stain, any thoughts on removing and more importantly stopping the growth of the stain.

Thanks,

Roger Konarski