Dirty Pebble Stone Floor Grout Clean and Seal Posted on August 18, 2007 by TonyDannucci Pebble stone floor in need of deep cleaning. This floor has a terrible residue from overuse of cleaning products. Dirt and grime just sticks to it after each mopping! Sometimes you don't even notice how dirty your grout has become. Take this pebble floor for example. At first glance you may not think it's in bad shape. The glassy look is our cleanser soaking into the floor, slowly emulsifying the dirt and buildup. We're about to start cleaning this dirty pebble stone and grout. Not a bad start...looks like this stone and grout will be clean soon! More stone and grout cleaning... Sure to be another satisfied customer. This stone pebble floor is cleaner than the day it was installed. We will add an application of premium penetrating sealer to give it some protection.