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Vegetation OP t1_j1xm8vu wrote

I was wondering about that.. lt wouldn't drain anything out of the basement, based on its position. It's not between 2 structures (is is part of an addition, but that was done at once). Maybe there is an air gap necessary when they put down the vapor barrier and concrete over the bedrock? Perhaps to let air in so that water underneath can drain away?
[edit: grammar]

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