concrete foundation crack

I have a cinder block basement. There is one spot where water comes through when it rains. Will drylock fix this? Or will more repair be needed? Thanks

In all the years that I have given advice to people, I have never recommended a dehumidifier. I know energy conservationists, HVAC professionals, plumbers and more who on a regular basis have recommended dehumidifiers. I do not pretend to be a basement water proofing or an Indoor Air Quality expert. I base my advice and opinion on a simple fact. That is that either heat or humidity must come from somewhere in order for it to be present within a structure. This explicitly implies that a dehumidifier does not address the source of the humidity in a basement. It merely aleviates the condition and certainly does not solve it. Improving the grade around the perimeter of the basement, providing proper drainage like extending your gutter a significant distance from the perimeter of the basement, basement wall water-proofing, insulating cold water pipes, taping the seams in your clothes dryer exhaust, covering the sump pump well and more all address the possible sources of humidity in the basement. The concern that I have with dehumidifiers is that under certain conditions it can aggrevate the situation. Equilibrium Relative Humidity works both ways. So if the ground and basement walls are at a higher humidity level than the air in the basement as a result of the dehumidifier, the humidity inside the ground and basement walls will be attracted to the basement air in order to equalize. As the humidity in the basement air increases, the dehumidifier works harder to remove the additional humidity. It eventually gets to the point that you need a larger dehumidifier to handle the amount of humidity being introduced into the basement. As the humidity is being drawn through the basement walls and floor because of the dehumidifier, it creates paths for the humidity to flow through and in some cases be retained. This in combination with hydrostatic pressure and the fact that water expands when it freezes are one of the reasons why cracks occur in basement walls and floors. So besides the fact that a dehumidifier does not address the source of the humidity in a basement, in most cases it is going to make things worse.