If the wall in my basement is leaking very slightly, is the main/only solution to the actual water issue to add grading outside? What else?
It is under a deck, which I can rip up a bit and fill with dirt, but is that likely to solve it?
We noticed from slightly bubbling paint and efflorescence.
You might need to improve the waterproofing along the wall. Really the best way to be confident in a fix is bringing in a qualified engineer to find the source and recommend a solution, but that’s also the most expensive solution.