Unless copper can cause a stain, i think it might be from the wood stain. I understand trying to remove a wood stain is very hard. I was hoping that there may be a product on market that may be an all round good limestone cleaner that cleans up stains.
From: Fred Hueston
<fhueston@gmail.com> To: Stone and Tile PROS Technical Support <sccpartners@stoneandtilepros.com> Sent: Friday, September 28, 2012 6:21 AM Subject: RE: [sccpartners] Stain Removal
Roger
as you know from my classes to remove the stain you have to know what it is.. I cant tell from the pic..Is it rust?
On Thu, Sep 27, 2012 at 10:03 PM, Roger Konarski <qm144@yahoo.com> wrote:
Look for suggestions on removing stains. Please look @ attached picture.