it looks like something is getting into the small pits of the stone.you may be right, it could be sunblock.  If the MEK cleaned it up and it came back chances are its something they are using in the shower..soap, shampoo, etc.<br>
<br><div class="gmail_quote">On Mon, Feb 28, 2011 at 9:27 PM,  <span dir="ltr">&lt;<a target="_top" href="mailto:stephen@newlifemarblerestoration.com">stephen@newlifemarblerestoration.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">






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<div><font size="2" face="Arial">Greetings everyone, The orange seen in the spots 
on the tile in the photo is a stain apearing in the holes that have grout 
and the grout lines. it&#39;s in a bathroom. I&#39;ve only had this show up in the 
bathrooms of some vacation condo&#39;s I service. I was thinking it might be aresol 
sunblock. I thought I cleaned it with MEK but it soon came back 
 Has anyone seen this before and had sucess cleaning it. Thank 
you</font></div>
<div><font size="2" face="Arial">Stephen</font></div>
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