------Original Message------
To: Restoration and Maintenance
Subject:
Sent: Feb 17, 2012 11:40 AM

Having a hard time getting a good clean on these travertine floors. Pictured is an acid spill that cleaned it beautifully and caused minor etching.  Thinking of a nuclear option with some phosporic acid, then a nylo grit brush afterwards to buff out the etching. Yes, I have been doing this for 25 years and I know you don't use acid on m/l/t, BUT the alkaline's are not doing it and I do not want to cover it up with grout...too slow. Thoughts.

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