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LowCarbTNPer
PostPosted: Jul 8th, '12, 06:08 
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Does anyone know if it would be OK to use 55 gallon barrels that once had orthophosphate in AP?

Orthophosphate is added to drinking water in a lot of places, but I don't know about using it in a recirculating system.
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Charlie
PostPosted: Jul 8th, '12, 08:51 
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Do youn know if its ferric or zinc orthophosphate?
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LowCarbTNPer
PostPosted: Jul 8th, '12, 09:31 
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I'm not sure, since my first post I've found the datasheet for it: http://www.caruscorporation.com/resourc ... emical.doc

As far as I can tell it doesn't mention iron or zinc. It does say it's up to 99% "Other non-hazardous ingredients" though lol.
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earthbound
PostPosted: Jul 8th, '12, 11:52 
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And 1% of the most toxic substance known to man.... :lol:
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