I would use 101 Lime Solvent from Prosoco. Unless you can find a way to keep moisture out the problem will keep going until the natural salts are spent.<br><br><div class="gmail_quote">On Fri, Jul 27, 2012 at 2:07 PM, Stuart Young <span dir="ltr">&lt;<a target="_top" href="mailto:santafefc@sbcglobal.net" target="_blank">santafefc@sbcglobal.net</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><div><br></div><div><font face="Arial">We have been asked to work on a large pool area with some heavy efflorescence (see pictures). </font><span style="line-height:15px;white-space:nowrap"><span><font face="Arial">The problem is primarily on the vertical portions of the walls coming from the grout and occasionally from cracks in the ceramic tile.  We&#39;ve tried a few things with some success, but I&#39;m hoping someone else has some ideas. </font></span></span><font face="Arial"><span style="line-height:15px"><div>
<i style="font-style:normal"><br></i></div><div><i style="font-style:normal">How can we best remove this?</i></div><div><i style="font-style:normal">Is there a good way to slow this efflorescence in the future? What products would you recommend?</i></div>
<div><i style="font-style:normal"><br></i></div><div><i style="font-style:normal">Thank you,</i></div><div><i style="font-style:normal"><br></i></div><div><i style="font-style:normal">Stuart Young</i></div><div><i style="font-style:normal">Santa Fe Floor Care, Austin TX</i></div>
</span></font><div><br></div><span> </span></div><div><br></div><img src="/sccpartners/cache/1485609/3.jpeg" height="479" width="640"><img src="/sccpartners/cache/1485609/2.jpeg" height="479" width="640"><hr>

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</div></blockquote></div><br><br clear="all"><br>-- <br>Walter Nartowicz<br>Mid Atlantic Stone Solutions<br><a target="_top" href="http://www.midatlanticstonesolutions.com">www.midatlanticstonesolutions.com</a><br>4607 Fayetteville Road<br>
Raleigh, NC 27603<br>919-772-2155 (Main Office)<br>