Looks like iron staining from deicing salts..If so it might be removable with iron out. I would test it.Could be tricky and could take a while. Problem is if they continue to use iron containing deicing salts the staining will return.<br>
<br><div class="gmail_quote">On Sat, Feb 12, 2011 at 4:24 PM, Lorne Greenberg <span dir="ltr">&lt;<a target="_top" href="mailto:lorne@fabracleenstoneandtilecare.com">lorne@fabracleenstoneandtilecare.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Are these restorable?<br>
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