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Old 07-18-2017, 01:34 PM  
swimmer_spe
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Moisture wicking thru the concrete brings salts with it, As the moisture evaporates it leaves the salts on the floor.
https://www.google.ca/?gws_rd=cr&ei=...n+garage+floor
Ok, S, now I know what it is, and what is causing it, and how to clean it.

Is there any way to stop it from occurring again? Why is it happening near the drain of my freezer?

I know I have seen white in other places too, so this is likely a problem with the entire basement.


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Old 07-18-2017, 02:11 PM  
nealtw
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Water wicks toward heat in concrete. The heat of the compressor likely doesn't help.


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Old 07-18-2017, 03:22 PM  
swimmer_spe
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Water wicks toward heat in concrete. The heat of the compressor likely doesn't help.
Would putting it on blocks be better?
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Old 07-18-2017, 03:53 PM  
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Would putting it on blocks be better?
Definite maybe.
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Old 07-18-2017, 05:35 PM  
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Looks like effervescence.
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Old 07-19-2017, 06:55 AM  
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Ok, S, now I know what it is, and what is causing it, and how to clean it.

Is there any way to stop it from occurring again? Why is it happening near the drain of my freezer?

I know I have seen white in other places too, so this is likely a problem with the entire basement.
I would put down something like this.

Deep Penetrating Sealer


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