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Dear Paul:

You remove grout like you do when you grout anything else: with a masonry sponge as you proceed. The application of a good-quality grout release before grouting should help a lot.

Worse get to worst, if at the end of the job you still have some grout staining, a good professional-grade scrubbing with MB-3 followed by thorough rinsing, will finish the job for you.

May I ask you now to please read and e-sign our Statement of Purpose at: http://www.marblecleaning.org/purpose.htm?

Ciao and good luck,

Maurizio Bertoli