Holy cow, these gray bricks are hard to clean!! Now we know we didn't get our money's worth. Sharon spent several hours cleaning bricks today and cleaned 39!! Seriously, only 39. This is Sharon's tiny "finished pile."We think the bricks are actually made from cement and they've got lots of pores that hold onto the failing mortar very well. Ironically, one of the best ways to clean the mortar off of them is to rub two bricks together, but they're about 5 pounds each and the muscles give out pretty quickly using that method.
And it's also hard to tell when you've removed all the mortar because the brick is basically the same color. So, this is a slow project and many of the bricks will no doubt be installed with some of the mortar residue still on them.