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#1
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That doesn't make sense though. It's just powder, it's not engineered to only mix so much in 2 minutes. I never have unmixed powder after the 2 mins anyway. If I see the bubbles are all out, I'll often put it right into the checker after the 2 mins mixing. I've never had unexpected or unusual results. I'll give it a shot today.
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#2
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Ok, I just ran the stupid checker 5 times.
Twice on my display, once your way, once my way. I got 0 ppb both times. That's useless. Then I tried the fish QT tank...it's too high for the ULR. That's useless. Then trying to figure out what I can do...hmm, maybe make some SW with tap water? Hmm... oh wait! I have a bin cycling some dry rock! So I test the bin twice, once my way, once your way. Put the cuvette in the checker right after the 2 minute mix - 99 ppb Continue to mix cuvette after the 2 min, and put in checker at 45 sec left on 3 min countdown - 103 ppb So 4 ppb is within the accuracy and EMC deviation which is +/- 5 ppb (each!), so essentially, my readings are the same as I expected they would be. |
#3
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I also did it both ways last night I got a ready of 12 the instruction way and 5 your way one thing I find doing this your way is I have much more time to Polish up the vial and confirm all micro bubbles are gone, possibly this is why I get the lower reading who knows.
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#4
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Ryan is there still powder in your vial after the short time you mix?
I usually premix my vials then do the test. But maybe I'll try the other method this time. Reason I premix before starting the test is because the powder takes time to melt and mix in. Perhaps my water is not warm enough. I find that emptying the packet into the vial and mixing it 10times with a rolling motion leaves a bunch of unmixed powder at the bottom.
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