White plaque on the walls in my basement - is this normal?
I don't think this is normal. Is your basement damp and musty? If so, then the white coating on the walls is most likely the deposition of salts. You can also observe the appearance of fungus and mold on surfaces. This must be fought. This means that you have problems with waterproofing and may even flood your basement in the future. We called the POM Group to install a water check valve https://pomwaterproofing.ca/back-wat...-installation/ . They are generally very knowledgeable about these issues and can tell you what to do.