
07/07/10, 12:31 PM
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Join Date: May 2002
Location: Back in the USSR
Posts: 9,948
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Thoroseal makes several products that would work for you. Thoroseal has been around a long time. One is NSF rated for drinking water supplies like in cisterns. I always suggest that you find the company in your area that sells supplies to contractors doing concrete work. They'll have access to more information and product diversity than the big box stores.
I wouldn't rule out your basement walls as a source of moisture. A lot depends on how your property lies and the water table.
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