Thread: Calgon
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Old 03-24-2013, 12:37 PM   #7
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Join Date: Mar 2012
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I use Calgon powder sand addit at the same time as my detergent. I don't need anywhere close to the Rec'd amount. We have moderately hard water so 1T RnG HR + 1T Calgon powder does the trick for us.

I buy it from Amazon.
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