Hi all. I have a job to do that I need some help with. this customer had her brick walk and brick knee walls repaired. It looks like someone wiped mortar all over the brick, the bricks are red but where the mortar is they are ghost white. I scrubbed the bricks about 60 of them with another brick which seemed to help for the thicker mortar, but still bright white haze. The bricks are mainly smooth, but have approx 1/8" dimples throughout. Bricks are approx 13 years old. Any help on how to solve this problem would be greatly appreciated. What chems, pressure, tip, etc can I use. I already tried tsp, and medium pressure, and that didnt help. i'm afraid to use too much press. on the brick, but accepted job and need to make it right. No chance to make money on this one anyway, just want to live up to my word and do a professional job. thanks in advance for your help.