I have a 1970 block-on-slab basement that has had occasional water issues, mostly coming up through cracks, not at the perimeter or walls. A previous owner had installed a perimeter drain with the courogated pipe just an inch or so below the surface. Even during one minor flooding event, the insides of the pipe were basically dry ( checked via a section I chipped away to inspect ). Now that I'm finishing the room, should I expose the existing pipe and put it down at the bottom level of the footer like it should have been? I've taken care of most of the water issues by fixing grading and gutter placent but feel like having the interior channels done right would give me a little extra protection.

Dan