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Old December 8, 2010, 08:36 AM
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lowfat lowfat is offline
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Join Date: Feb 2007
Location: Grande Prairie, AB
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My System Specs

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Primoflex tubing is antimicrobial but does not contain a biocide. So it will not help your blocks at all. I am also a fan of just straight distilled. As long as you change it once in a while you should be fine.
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