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    Depends on where you live. I grew up in the Intermountain West (Southern Idaho). Water table was 1500 feet down at best. Everybody had a basement, nobody had a sump pit/pump. Wet basements just aren't an issue there. I now live in the Midwest. This answer is 100% guaranteed correct for here. Commented Oct 9, 2023 at 13:34
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    Another problem with waterproof shells is that sometimes they can detatch from the surrounding ground and float. Commented Oct 10, 2023 at 4:50
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    @PeterGreen is that a real thing? I've read about it many times, IE overzealous waterproofing can cause house-planet detachment. But I've never heard of it actually happening or of building codes or engineering standards requiring buoyancy calculations. Have you? Commented Oct 10, 2023 at 10:16
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    LOL @jay613's "house-planet detachment"... :D Commented Oct 10, 2023 at 13:36
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    It definitely happens that empty concrete swimming pools float out of the ground. I've never heard of it happening to a basement... Commented Oct 10, 2023 at 16:49