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If re-grading raises the ground level
above the sill of a basement window, protect it with a window well.
Purchase a curved plastic or corrugated metal liner that is 6 inches
wider than the window. Excavate to a depth of 1 foot beneath the sill,
set the liner in place, and pour 4 to 6 inches of gravel into the well.
Fill outside the liner with a layer of gravel 2-3 inches thick for about
two-thirds of the depth of the hole. Finish with earth above, sloped
away from the well. Cover wells with wire mesh or plastic domes if
leaves and debris are a problem.
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