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A temporary jack post is in the basement of the detached frame house we’re looking to buy. Structurally the house is very sound with no visible sagging but apparently a jack post is against building code. There is a concrete slab in the basement. The recommendation is to replace the jack post with steel pipe column. Is a steel pipe the same thing as a lally column? Do I have to break through the concrete slab to pour a new footing for this steel pipe column? Is this something I can do myself? Thanks!