I am fixing up my 120 year old home. I have removed the old interior wood and plasterboard walls and exposed the granite wall block behind with original fireplace. I want to keep the granite walls exposed but the are covered not entirely with old cement. how do I go about cleaning up the granite walls and fireplace to make them look good again what is the best method keeping costs down. I have tried a wire circular brush on a drill, it does the job but takes a long time per block. Any advice would be most welcome.
Thanks,
Gary.
Thanks,
Gary.