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eric, we do this.
trench. line trench with filter fabric..sides& bottom. rigid preforated pipe, back fill with 1" gravel. wrap the fabric around, essentially making a "burrito"...then you can backfill. my co-worker did this under his house, into a sump hole, with a pump. he pumps it out into the yard. we do this as temp drains..so i know very little about long term.
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poof! gone
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