I tried that. I used cool water and put the oxalic acid in there. Tell me how you did it. Does it take more than one time? Would hot water help?
Muratic acid. U can buy at lowes for $10.80. Paint section by the cleaners
Muratic acid will harm quartz. Just FYI.Muratic acid. U can buy at lowes for $10.80. Paint section by the cleaners