So I had a window bricked over. Either something was lost in the translation, or the guy really didn't care, but the mortar he used is more that a couple of shades darker than the original. Any suggestions on how to lighten it without scraping it out and repointing? I am afraid he used a mix with a high cement level because it is already rock hard.
I have read about muriatic acid, any one try it? Any other suggestions?
I have read about muriatic acid, any one try it? Any other suggestions?