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Posted by marson on June 18, 2006, 8:56 pm
Eigenvector wrote:
> When the inspector did the check out of the house he mentioned the basement
> foundation had evidence of water problems. We talked about it with the
> seller and agreed that his fix prior to selling was adequate for my
> purposes. Anyway, the inspector pointed out these chalky deposits on the
> concrete walls of the foundation and that he sees this all the time with
> water problems. It looks exactly like chalk or lime is sitting on the
> surface of the concrete and if you poke at it the white chalky substance
> flakes off.
>
> I guess my question is, what is the white chalky stuff? The inspector said
> something akin to the concrete materials were leaching to the surface,
> calcification I guess.
>
> As a follow on, assuming the water problem has been resolved does the
> presence of the chalky stuff on the concrete indicate that I don't have a
> hope of sealing my basement against further water, should the problem come
> back in the future? The original owner put down a tarpaper, 2x4, plywood
> floor on the foundation as the flooring material and I'd like to remove it
> and put down something a bit more roomy - like all-weather carpeting or
> tile.
the white substance is called efflorescence. punch it into google.
does the efflorescence continue to appear after you clean it off? if
so, then yes, water is still moving through your foundation. what did
the original owner do to resolve the water problems?
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