I have an older house in Atlantic City, New Jersey, USA. The house currently has an exterior of white aluminum siding applied in the early 70’s. Its original exterior was white stucco. The stucco was not removed when the aluminum siding was applied. The foundation of the house is unpainted brick and is badly discolored due to a “bleeding” of the previous and/or current exterior. It is best described as a “white wash” originating from and concentrated from the siding and down spouts. I wish to restore the red brick foundation back to its original glory. What can I apply to the brick to do so? I have ruled out muriatic acid and paint remover. I am not interested in sand/waterblast or paint. Please advise!