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post #10 of (permalink) Old 08-26-2010, 01:57 PM
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I measured out 6 grams of sodium bicarbonate from a brand new box of arm and hammer on a laboratory scale that measured to .0001 (I settled for .001, I was fine tuning by the spec). I mixed that with 5 liters of distilled water measured out with a 1000 ml graduated cylinder, in a new carboy rinsed out with DI water. Then I diluted it 1:9 with distilled water using a 100 ml graduated cylinder and the 1000 ml (the last solution I was very diligent measuring by the drop with a pipette).

So, I was hoping for a liter of 4 KH, but when I tested it with an API KH tester, it took 5 drops to turn it from blue to yellow. Would it make sense to remix, and try again, or dial it in to the drops by diluting it?
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