White Powder on Basement Block Wall

15 years ago

We moved into our new home that we had built in March of this year. We started noticing a dampness on the block walls in a few areas of the basement. Over the course of time, however this dampness turned into furry white patches on the wall. When touched, it turns into a fine white powder. I've done some searching and found an image of it on the web. Unfortunately, all it really says is it's a loss of lime salt on the cement block walls. Has anyone heard of this before and if so, whats our next step in correcting the problem. Thanks

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