How do I get rid of the powder??

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Old 01-19-05, 11:56 AM
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Question How do I get rid of the powder??

I am continuing with my demolition of my basement and I have a quick question that I am sure someone can answer for me.
I have a lot of white powder, thatís kind of like salt crystals all over the lower courses of block. (I know the name, but didnít want to butcher the word with my spelling)
What is the best way to clean this off and prevent its return?
Some walls have what looks like a sealer on them, in places it is pealing off and this powder looks to be thriving there.

A guy I work with says to brush off the excess and treat it with vinegarÖ.will this work?

 
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Old 01-19-05, 12:12 PM
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The white stuff is part of the concrete block mixture that is being forced out due to moisture. Evidently the previous sealer did not work. Brushing it off with a wire brush will remove it but you will still have to seal it to prevent it from returning. Good luck.
You are going to have to determine the cause of all the moisture and fix it.
 
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Old 01-20-05, 04:01 AM
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Ok.
The moisture problem was caused by a clogged french drain. Apparently the drain had been clogged for years before I bought the house. I have cleared the clogs and replaced the damaged pipe.
The basement has been dry now for about a year.
My question is after I remove the surface powder, how do I get it out of the pores of the block before I re-seal?
 
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Old 01-20-05, 04:17 AM
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I believe the wire brush will remove most of it. I hate to tell you to wet it down with anything as I don't know if it would get it out anyways. An air compressor MAY work. Good luck.
 
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