1. Using a jack-hammer, the basement floor is opened adjacent to the wall. A trench is excavated. The width is determined by the width of the foundation footing. The depth is limited since it may not be lower than the bottom of the footing.
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2. Holes are drilled in the blocks below floor level to release water trapped in the hollow blocks. (This step does not apply to poured concrete foundations.)
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3. Fully slotted polyethylene or PVC pipe is laid in place and covered with gravel.
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4. The floor is re-cemented to its original level with a one inch expansion allowance left between the wall and the floor.
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5. To discharge the water, a submersible sump pump is installed in a covered polyethylene container.
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6. From the submersible pump, a discharge line is run up the wall. Through a drilled hold in the wall, the discharge line is extended.
7. Bentonite may be dry-poured through holds drilled approximately three feet apart on exposed exterior portions of the sub-soil masonry. When Bentonite mixes
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