Have 1920s house with a leaky basement. I have demod out the drywall and insulation on the interior side of the home. The plan was to excavate a portion of the west elevation of the house, seal wall with liquid applied vapor barrier, and install a french drain that empties in to the far end of the front yard. In the process of excavating I found out that foundation was built out of an old poured in place concrete wall with cmu block on top of that. Assuming at the seam is probably were my leakage is happening. At a few of the high water path areas the concrete has spalled off. Looks like a mixed on site, large aggregate, pour mix... Any concerns from a structural stand point that anyone could see? There is one small vertical crack in the wall but the wall in all is plumb and straight. I'm I taking the right approach as far as addressing the water issue? Any recommendations from the pros? First time home owner here.