I need to do something about a basement water problem. It appears I have seepage. My basement is cement block walls. There is already a Beaver-type system in another area of the basement that seems to do the job -- the new seepage is in a different corner.

Going at it from the outside is not my first choice. Next to one wall of the corner (outside) is a cement sidewalk that is sloped away from the house. The other wall is a covered porch (cement slab), also sloped away from the house. But still the water is getting in.

The part of these two systems that somewhat bothers me is water in the block cores can sit up to the level of the weep holes I plan to drill. I was thinking of pumping something like 'sand mix' or 'self leveling' concrete into the cores through the weep holes up to the bottom of the weep hole to keep water from collecting and sitting until it drains away. Does this make sense, or would doing so lead to other issues? Thanks.

Paul