Dictionary
(a.) Permitting liquids to pass by percolation; not capable of retaining water; porous; pervious; -- said of gravelly or sandy soils, and the like.

Thesaurus
cribriform excretory exudative leachy leaky oozy penetrable percolating percolative permeable pervious porose runny sievelike spongelike spongy transudative weepy
                                                                                                                                                                                                                                       

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Leaching
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