OCR Text |
Show Acid Solution Is ; Remedy For j Brick Blotches Efflorescence alkaline salts working to the surface causes white, crusty blotches occurring sometimes on brick and concrete i walls. These blotches can be removed 1 with a wire brush and washing . with a solution of one part muriatic muri-atic acid in ten parts of water, j Rinse with clear water two minutes min-utes after application of the solu-' solu-' tion to avoid pitting the surface. Care must be taken to protect i your eyes when using this strong solution. Wear rubber gloves, too, and old clothing. |