How To Clean Efflorescence Off Basement Walls. If this is the case, muriatic acid may need to be used to remove home improvement stores often carry cleaning products specifically designed for removing efflorescence from concrete. If you have a floor drain in the basement, drain the dehumidifier directly into the drain.
Follow the mixing directions on the bottle to make an acid solution.4 x research source presoak the wall with water before application.
Learn how to fix a leaking basement, waterproof basement walls, and dry your foundation for good with family handyman. Some efflorescence is so severe or has been on the wall so long that it won't come off. A clean and polished basement floor determines how organized a family is! Otherwise, you will need to periodically empty the water tray.