Originally Posted By: bnelson
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A local builder came by my place the other night, quite late I might add, in a panic because two of his 9 spec homes’ crawl spaces had turned into swimming pools with the recent rains. Sump pumps for sure, but I’d like to provide him with some illustrations from authoritative sources on the proper method and placement for rigid perforated pipe. His excavator lays it on top of the footings, whether he bothers to put the holes down I don’t know. But these are hillside houses and I should mention that these crawl spaces, and ALL crawl spaces in this area are the lowest grade on the site. They get backfilled, if at all, about an inch above the bottom of the footing (on the interior of the crawl space.) Stupid, I know.