Why are the holes of the pipe facing down? Wouldn't you want the water to filter into the pipe from the top holes and drain out from the bottom?
Md Ariful Islam
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Dr. Md Rushad Rahman
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No. The water travels to the lowest point in the gravel, which is beneath your pipe. If you put the holes on top, they would probably catch some of the draining water, but most of the water (considering the width of the trench vs. the holes) would actually begin pooling below the pipe. With the holes on the bottom, they are closer to the lowest point and therefore will catch more water because gravity will compel it toward the path of least resistance (in the pipe).
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