Roger<div><br></div><div>Pitting and spalling can be caused by basically two things..The crystallization of soluble salts and/or extreme heat. I would first look to see how the granite is set. If it is set in a mortar that is getting wet it can be caused by salts in the setting bed. I would also look at external salt sources. ie, cleaners, deicing salts, etc.</div>
<div><br></div><div><br><br><div class="gmail_quote">On Sun, Jan 9, 2011 at 1:43 PM, Roger Konarski <span dir="ltr">&lt;<a target="_top" href="mailto:qm144@yahoo.com">qm144@yahoo.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<table cellspacing="0" cellpadding="0" border="0"><tbody><tr><td valign="top" style="font:inherit"><p style="margin:0in 0in 10pt" class="MsoNormal"><font size="3" face="Calibri">I would appreciate help on this problem. See attached pictures. New installation of outdoor granite. They are having problems with the stone pitting in certain areas. What is causing this and what if anything can be done to prevent this from continuing? <span> </span>Thanks in advance for your help!</font></p>
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