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Old 02-02-2018, 08:44 AM
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Pete VanderLaan Pete VanderLaan is offline
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Join Date: Apr 2002
Location: Chocorua New Hampshire
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I'd be inclined to simply replace that calcium with both zinc and strontium and the industrial sludge will stop. I had told you it has a tendency to be streaky and more phosphate would help there. While the silica is low, it's not that low. I assume you're allowing the stuff to get really cold before you try for the strike.

I don't particularly trust flame annealed Hagy seals.
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