Interior water proofing covers a multiple of solutions ranging from excavating the perimeter of the basement and installing footer drain tiles and a sump crock and pump, to installing a baseboard with weep holes to release water from the block at the floor level and channel it to a drain, to waterproofing paints and sealers.
Installation of interior drain tile is the most common form of basement water proofing. A sump pump alone is sufficient to release the hydrostatic pressure from a high water table (picture a glass tipped upside down in water) in some cases if the water is located mainly on one side or near a corner. This solution does not waterproof the foundation, which can only be done on the outside by opening the outside walls down to the footer level and applying a waterproof barrier. However, it gives the water pressure a release at a point below the floor and keeps it from reaching the above walls and floor seam where it will often seep in, thus providing for a dry basement.basement waterproofing sumpter
The concrete is broken out about ten inches from the wall and a trench about twelve inches deep is dug around the basement or adjacent to the wet wall. One must be careful to leave spacers of solid concrete against the wall about every five feet (which is tunneled under to install the drain tile) to insure the wall does not loose its support from the floor and collapse. Weep holes (small holes drilled into each cavity of each cinder block) to release water from the block are installed at the base of the wall in the last course of blocks just below the floor level, thus keeping the water from reaching the floor level.