A mild (5% muriatic) acid wash should do it. 

  
On 13 Jun 2018, at 7:38 am, Bob Murrell <bmurrell@m3techinc.com> wrote:

A fine nylo-grit brush (say in the 180g or 500g) may help too...
 
Bob Murrell
Director of Operations
SCC/M3 Technologies Inc.
Cell-865-607-0957
Office-800-342-4533
Skype-robert.murrell8
 
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From: sccpartners@stoneandtilepros.simplelists.com [mailto:sccpartners@stoneandtilepros.simplelists.com] On Behalf Of Efrain Medina
Sent: Tuesday, June 12, 2018 3:45 PM
To: sccpartners@stoneandtilepros.simplelists.com
Subject: FW: sandstone paver staining
 
Hello Partners,
 
So we have some sandstone that was laid on a wed. and finished Friday. It was hosed down on a Friday and returning Monday it was really stained. 1 tile has been cleaned with a hydrogen peroxide, but it started to return. The back was also done but not hosed off that this didn’t happen to. They have about another 3000 sf to install and they don’t want to have this happen with all of it.  I will include pictures any info would be great.
 

 

Thank you, we appreciate your business!
Efrain Medina
(602) 993-9800 Office
2039 E. Cedar St. #104
Tempe, AZ 85281
INSTALLATION – RESTORATION – MAINTENANCE
 

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